Property and equipment, net

2,585,343

2,189,816

Intangible assets, net

275,372

195,182

81,362

63,689

Supplemental retirement savings plan assets

89,937

89,012

Accounts receivable, long-term

8,330

8,188

Other long-term assets

25,159

30,033

Current portion of long-term debt

3,987,341

3,242,030

^[1]

Current liabilities:

53,965

38,965

Accounts payable

95,270

56,840

Accrued compensation and benefits

228,362

185,830

Other accrued expenses and current liabilities

187,579

118,046

Total current liabilities

565,176

399,681

Long-term debt, net of current portion

1,402,079

1,024,599

Supplemental retirement savings plan obligations, net of current portion

76,995

76,860

Deferred income taxes

248,458

200,237

Other long-term liabilities

87,320

60,381

Total liabilities

2,380,028

1,761,758

Commitments and contingencies

Shareholders' equity:

Preferred stock $0.10 par value, 10,000 shares authorized, no shares issued

Common stock $0.10 par value, 80,000 shares authorized; 41,758 issued and 24,323 outstanding at June 30, 2016 and 41,622 issued and 24,184 outstanding at June 30, 2015

4,176

4,162

Additional paid-in capital

558,324

547,979

Retained earnings

1,661,948

1,519,149

Accumulated other comprehensive loss

(41,083)

(14,960)

Treasury stock, at cost (17,435 and 17,438 shares, respectively)

(576,187)

(576,193)

Total CACI shareholders' equity

1,607,178

1,480,137

Noncontrolling interest

135

Total shareholders' equity

1,607,313

1,480,272

Total liabilities and shareholders' equity

$ 3,987,341

$ 3,242,030

[1]	Adjusted for the reclassification of debt issuance costs and deferred taxes pursuant to the adoption of ASU 2015-03 and ASU 2015-17. See Note 3 to the Consolidated Financial Statements for further information.

CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares shares in Thousands	Jun. 30, 2016	Jun. 30, 2015
Statement Of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	80,000	80,000
Common stock, shares issued	41,758	41,622
Common stock, shares outstanding	24,323	24,184
Treasury stock, shares at cost	17,435	17,438

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 142,799	$ 126,296	$ 135,919
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	64,752	66,083	65,181
Non-cash interest expense			11,421
Amortization of deferred financing costs	3,234	2,639	2,940
Loss on extinguishment of debt		272	4,116
Stock-based compensation expense	17,919	14,072	11,557
Deferred income tax expense	13,568	27,022	15,559
Equity in earnings of unconsolidated ventures	(204)	(874)	(1,656)
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable, net	(105)	18,889	91,010
Prepaid expenses and other assets	(8,408)	(2,057)	(4,666)
Accounts payable and other accrued expenses	2,427	(21,484)	(119,997)
Accrued compensation and benefits	4,320	2,776	(20,416)
Income taxes payable and receivable	14,868	17	11,537
Deferred rent	(9,631)	(4,323)	(1,151)
Supplemental retirement savings plan obligations and other long-term liabilities	(2,962)	(2,466)	2,116
Net cash provided by operating activities	242,577	226,862	203,470
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(20,835)	(17,444)	(15,279)
Cash paid for business acquisitions, net of cash acquired	(587,821)	(14,972)	(839,050)
Net investments in unconsolidated joint ventures		391	3,550
Other	1,069	629	(876)
Net cash used in investing activities	(607,587)	(31,396)	(851,655)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings under bank credit facilities, net of financing costs	1,058,500	438,969	1,577,000
Principal payments made under bank credit facilities	(659,965)	(650,141)	(902,781)
Payment of financing costs under bank credit facilities	(9,290)	(2,279)	(13,369)
Payment of contingent consideration			(3,294)
Proceeds from employee stock purchase plans	3,086	3,287	3,527
Proceeds from exercise of stock options		691
Repurchases of common stock	(3,230)	(3,400)	(3,653)
Payment of taxes for equity transactions	(8,045)	(7,378)	(9,764)
Other	451	(2,257)	(991)
Net cash (used in) provided by financing activities	381,507	(222,508)	646,675
Effect of exchange rate changes on cash and cash equivalents	(2,779)	(2,055)	1,634
Net increase (decrease) in cash and cash equivalents	13,718	(29,097)	124
Cash and cash equivalents, beginning of year	35,364	64,461	64,337
Cash and cash equivalents, end of year	49,082	35,364	64,461
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid during the period for income taxes, net of refunds	54,970	45,068	52,268
Cash paid during the period for interest	37,429	33,491	23,877
Non-cash financing and investing activities:
Accrued capital expenditures	$ 2,170	$ 1,349
Landlord-financed leasehold improvements			$ 2,190

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total CACI Shareholders' Equity	Noncontrolling Interest	Total
Beginning balance at Jun. 30, 2013	$ 4,117	$ 530,154	$ 1,257,638	$ (9,815)	$ (577,191)	$ 1,204,903	$ 2,669	$ 1,207,572
Beginning balance, shares at Jun. 30, 2013	41,172				17,950
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to CACI			135,316			135,316		135,316
Noncontrolling interest							603	603
Stock-based compensation expense		11,557				11,557		11,557
Exercise of stock options and vesting of restricted stock units	$ 27	(4,414)				(4,387)		(4,387)
Exercise of stock options and vesting of restricted stock units (in shares)	269
Change in fair value of interest rate swap agreements, net				(3,643)		(3,643)		(3,643)
Currency translation adjustment				13,333		13,333		13,333
Repurchases of common stock					$ (3,495)	(3,495)		(3,495)
Repurchases of common stock (in shares)					53
Acquisition of common stock from call option, value		106,799			$ (106,799)
Acquisition of common stock from call option (in shares)					1,431
Treasury stock issued for conversion of the Convertible Notes		(106,799)			$ 106,799
Treasury stock issued for conversion of the Convertible Notes (in shares)					(1,431)
Treasury stock issued under stock purchase plans		37			$ 3,519	3,556		3,556
Treasury stock issued under stock purchase plans (in shares)					(62)
Post-retirement benefit costs				(257)		(257)		(257)
Net distributions to noncontrolling interest							(989)	(989)
Ending balance at Jun. 30, 2014	$ 4,144	537,334	1,392,954	(382)	$ (577,167)	1,356,883	2,283	1,359,166
Ending balance, shares at Jun. 30, 2014	41,441				17,941
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to CACI			126,195			126,195		126,195
Noncontrolling interest							101	101
Stock-based compensation expense		14,072				14,072		14,072
Exercise of stock options and vesting of restricted stock units	$ 18	(2,862)				(2,844)		(2,844)
Exercise of stock options and vesting of restricted stock units (in shares)	181
Lapse of statute of limitations for uncertain tax position		438				438		438
Change in fair value of interest rate swap agreements, net				(2,398)		(2,398)		(2,398)
Currency translation adjustment				(11,943)		(11,943)		(11,943)
Repurchases of common stock		(158)			$ (3,242)	(3,400)		(3,400)
Repurchases of common stock (in shares)					44
Treasury stock issued upon settlement of warrants, value		(973)			$ 964	(9)		(9)
Treasury stock issued upon settlement of warrants (in shares)					(498)
Treasury stock issued under stock purchase plans		128			$ 3,252	3,380		3,380
Treasury stock issued under stock purchase plans (in shares)					(49)
Post-retirement benefit costs				(237)		(237)		(237)
Net distributions to noncontrolling interest							(2,249)	(2,249)
Ending balance at Jun. 30, 2015	$ 4,162	547,979	1,519,149	(14,960)	$ (576,193)	1,480,137	135	1,480,272
Ending balance, shares at Jun. 30, 2015	41,622				17,438
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to CACI			142,799			142,799		142,799
Noncontrolling interest
Stock-based compensation expense		17,919				17,919		17,919
Exercise of stock options and vesting of restricted stock units	$ 14	(7,465)				(7,451)		(7,451)
Exercise of stock options and vesting of restricted stock units (in shares)	136
Change in fair value of interest rate swap agreements, net				(5,992)		(5,992)		(5,992)
Currency translation adjustment				(19,961)		(19,961)		(19,961)
Repurchases of common stock		(192)			$ (3,038)	(3,230)		(3,230)
Repurchases of common stock (in shares)					37
Treasury stock issued under stock purchase plans		83			$ 3,044	3,127		3,127
Treasury stock issued under stock purchase plans (in shares)					(40)
Post-retirement benefit costs				(170)		(170)		(170)
Net distributions to noncontrolling interest
Ending balance at Jun. 30, 2016	$ 4,176	$ 558,324	$ 1,661,948	$ (41,083)	$ (576,187)	$ 1,607,178	$ 135	$ 1,607,313
Ending balance, shares at Jun. 30, 2016	41,758				17,435

ORGANIZATION AND BASIS OF PRESENTATION

12 Months Ended

Jun. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

ORGANIZATION AND BASIS OF PRESENTATION

NOTE 1. ORGANIZATION AND BASIS OF PRESENTATION

Business Activities

CACI International Inc, along with its wholly-owned subsidiaries and joint ventures that are more than 50 percent owned or otherwise controlled by it (collectively, the Company), is an international information solutions and services provider to its customers, primarily the U.S. government. Other customers include state and local governments, commercial enterprises and agencies of foreign governments.

The Company’s operations are subject to certain risks and uncertainties including, among others, the dependence on contracts with federal government agencies, dependence on revenue derived from contracts awarded through competitive bidding, existence of contracts with fixed pricing, dependence on subcontractors to fulfill contractual obligations, dependence on key management personnel, ability to attract and retain qualified employees, ability to successfully integrate acquired companies, and current and potential competitors with greater resources.

Basis of Presentation

The accompanying consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) and include the assets, liabilities, results of operations and cash flows for the Company, including its subsidiaries and joint ventures that are more than 50 percent owned or otherwise controlled by the Company. All intercompany balances and transactions have been eliminated in consolidation.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Jun. 30, 2016
Summary Of Significant Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Revenue Recognition Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the fee is fixed or determinable, and collectability is reasonably assured. The Company generates almost all of its revenue from three different types of contractual arrangements: cost-plus-fee, time and material (T&M), and fixed price contracts. Revenue on cost-plus-fee contracts is recognized to the extent of costs incurred plus an estimate of the applicable fees earned. The Company considers fixed fees under cost-plus-fee contracts to be earned in proportion to the allowable costs incurred in performance of the contract. For cost-plus-fee contracts that include performance based fee incentives, and that are subject to the provisions of Accounting Standards Codification (ASC) 605-35, Revenue Recognition – Construction-Type and Production-Type Contracts (ASC 605-35), the Company recognizes the relevant portion of the expected fee to be awarded by the customer at the time such fee can be reasonably estimated, based on factors such as the Company’s prior award experience and communications with the customer regarding performance. For such cost-plus-fee contracts subject to the provisions of ASC 605-10-S99, Revenue Recognition – SEC Materials (ASC 605-10-S99), the Company recognizes the relevant portion of the fee upon customer approval. Revenue on T&M contracts is recognized to the extent of billable rates times hours delivered for services provided, to the extent of material cost for products delivered to customers, and to the extent of expenses incurred on behalf of the customers. Shipping and handling fees charged to the customers are recognized as revenue at the time products are delivered to the customers. The Company has several categories of fixed price contracts: fixed unit price, fixed price-level of effort, and fixed price-completion. Revenue on fixed unit price contracts, where specified units of output under service arrangements are delivered, is recognized as units are delivered based on the specified price per unit. Revenue on fixed unit price maintenance contracts is recognized ratably over the length of the service period. Revenue for fixed price-level of effort contracts is recognized based upon the number of units of labor actually delivered multiplied by the agreed rate for each unit of labor. The Company’s fixed price-completion contracts which involve the design and development of complex customer systems are within the scope of ASC 605-35. Revenue is recognized on the percentage-of-completion method using costs incurred in relation to total estimated costs. For fixed price-completion contracts that are not within the scope of ASC 605-35, revenue is generally recognized over the period when services are provided. Contract accounting requires judgment relative to assessing risks, estimating contract revenue and costs, and making assumptions for schedule and technical issues. Due to the size and nature of many of the Company’s contracts, the estimation of total revenue and cost at completion is complicated and subject to many variables. Contract costs include material, labor, subcontracting costs, and other direct costs, as well as an allocation of allowable indirect costs. Assumptions have to be made regarding the length of time to complete the contract because costs also include expected increases in wages and prices for materials. For contract change orders, claims or similar items, the Company applies judgment in estimating the amounts and assessing the potential for realization. These amounts are only included in contract value when they can be reliably estimated and realization is considered probable. Incentives or penalties related to performance on contracts are considered in estimating sales and profit rates, and are recorded when there is sufficient information for the Company to assess anticipated performance. Estimates of award fees for certain contracts are also a factor in estimating revenue and profit rates based on actual and anticipated awards. From time to time, the Company may proceed with work based on customer direction prior to the completion and signing of formal contract documents. The Company has a formal review process for approving any such work. Revenue associated with such work is recognized only when it can be reliably estimated and realization is probable. The Company bases its estimates on previous experiences with the customer, communications with the customer regarding funding status, and its knowledge of available funding for the contract or program. The Company’s U.S. government contracts comprise 93.5 and 93.7 percent of total revenue in the year ended June 30, 2016 and 2015, respectively and are subject to subsequent government audit of direct and indirect costs. Incurred cost audits have been completed through June 30, 2009. Management does not anticipate any material adjustment to the consolidated financial statements in subsequent periods for audits not yet started or completed. Costs of Revenue Costs of revenue include all direct contract costs including subcontractor costs, as well as indirect overhead costs and selling, general and administrative expenses that are allowable and allocable to contracts under federal procurement standards. Costs of revenue also include costs and expenses that are unallowable under applicable procurement standards, and are not allocable to contracts for billing purposes. Such costs and expenses do not directly generate revenue, but are necessary for business operations. Cash and Cash Equivalents The Company considers all investments with an original maturity of three months or fewer on their trade date to be cash equivalents. The Company classifies investments with an original maturity of more than three months but fewer than twelve months on their trade date as short-term marketable securities. Inventories Inventories are stated at the lower of cost or market using the specific identification cost method, and are recorded within prepaid expenses and other current assets on the accompanying consolidated balance sheets. Accounting for Business Combinations and Goodwill The purchase price of an acquired business is allocated to the tangible assets and separately identifiable intangible assets acquired less liabilities assumed based upon their respective fair values, with the excess recorded as goodwill. The Company evaluates goodwill at least annually for impairment, or whenever events or circumstances indicate that the carrying value may not be recoverable. The evaluation includes comparing the fair value of the relevant reporting unit to the carrying value, including goodwill, of such unit. The level at which the Company tests goodwill for impairment requires management to determine whether the operations below the operating segments constitute a self-sustaining business for which discrete financial information is available and segment management regularly reviews the operating results. If the fair value exceeds the carrying value, no impairment loss is recognized. However, if the carrying value of the reporting unit exceeds its fair value, the goodwill of the reporting unit may be impaired. Impairment is measured by comparing the implied fair value of the goodwill to its carrying value. Separately identifiable intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed for impairment if impairment indicators are present. As part of the annual assessment, the Company estimates the fair value of its reporting units using both an income approach and a market approach. The valuation process considers management’s estimates of the future operating performance of each reporting unit. Companies in similar industries are researched and analyzed and management considers the domestic and international economic and financial market conditions, both in general and specific to the industry in which the Company operates, prevailing as of the valuation date. The income approach utilizes discounted cash flows. The Company calculates a weighted average cost of capital for each reporting unit in order to estimate the discounted cash flows. The Company evaluates goodwill as of the first day of the fourth quarter. In addition, the Company will perform interim impairment testing should circumstances requiring it arise. The Company completed its annual goodwill assessment as of April 1, 2016 and no impairment charge was necessary as a result of this assessment. Long-Lived Assets (Excluding Goodwill) Long-lived assets such as property and equipment and intangible assets subject to amortization are reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. An impairment loss would be recognized if the sum of the long-term undiscounted cash flows is less than the carrying amount of the long-lived asset being evaluated. Any write-downs are treated as permanent reductions in the carrying amount of the assets. Property and equipment is recorded at cost. Depreciation of equipment and furniture has been provided over the estimated useful life of the respective assets (ranging from three to eight years) using the straight-line method. Leasehold improvements are generally amortized using the straight-line method over the remaining lease term or the useful life of the improvements, whichever is shorter. Repairs and maintenance costs are expensed as incurred. Separately identifiable definite-lived intangible assets are amortized over their respective estimated useful lives. External Software Development Costs Costs incurred in creating a software product to be sold or licensed for external use are charged to expense when incurred as indirect costs and selling expenses until technological feasibility has been established for the software. Technological feasibility is established upon completion of a detailed program design or, in its absence, completion of a working software version. Thereafter, all such software development costs are capitalized and subsequently reported at the lower of unamortized cost or estimated net realizable value. Capitalized costs are amortized on a straight-line basis over the remaining estimated economic life of the product. Supplemental Retirement Savings Plan The Company maintains the CACI International Inc Group Executive Retirement Plan (the Supplemental Savings Plan) and maintains the underlying assets in a Rabbi Trust. The Supplemental Savings Plan is a non-qualified defined contribution supplemental retirement savings plan for certain key employees whereby participants may elect to defer and contribute a portion of their compensation, as permitted by the plan. Each participant directs his or her investments in the Supplemental Savings Plan (see Note 20). A Rabbi Trust is a grantor trust established to fund compensation for a select group of management. The assets of this trust are available to satisfy the claims of general creditors in the event of bankruptcy of the Company. The assets held by the Rabbi Trust are invested in corporate owned life insurance (COLI) products. The COLI products are recorded at cash surrender value in the consolidated financial statements as supplemental retirement savings plan assets. The amounts due to participants are based on contributions, participant investment elections, and other participant activity and are recorded as supplemental retirement savings plan obligations. Income Taxes Income taxes are accounted for using the asset and liability method whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statement carrying amounts of assets and liabilities, and their respective tax bases, and operating loss and tax credit carry forwards. The Company accounts for tax contingencies in accordance with updates made to ASC 740-10-25, Income Taxes – Recognition. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities due to a change in tax rates is recognized in income in the period that includes the enactment date. Estimates of the realizability of deferred tax assets are based on the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies. Any interest or penalties incurred in connection with income taxes are recorded as part of income tax expense for financial reporting purposes. Costs of Acquisitions Costs associated with legal, financial and other professional advisors related to acquisitions, whether successful or unsuccessful, are expensed as incurred. Foreign Currency Translation The assets and liabilities of the Company’s foreign subsidiaries whose functional currency is other than the U.S. dollar are translated at the exchange rate in effect on the reporting date, and income and expenses are translated at the weighted-average exchange rate during the period. The Company’s primary practice is to negotiate contracts in the same currency in which the predominant expenses are incurred, thereby mitigating the exposure to foreign currency fluctuations. The net translation gains and losses are not included in determining net income, but are accumulated as a separate component of shareholders’ equity. Foreign currency transaction gains and losses are included in determining net income, but are insignificant. These costs are included as indirect costs and selling expenses in the accompanying consolidated statements of operations. Earnings Per Share Basic earnings per share excludes dilution and is computed by dividing income by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock but not securities that are anti-dilutive, including stock options and stock settled stock appreciation rights (SSARs) with an exercise price greater than the average market price of the Company’s common stock. Using the treasury stock method, diluted earnings per share includes the incremental effect of SSARs, stock options, restricted shares, and those restricted stock unit (RSUs) that are no longer subject to a market or performance condition. Information about the weighted-average number of basic and diluted shares is presented in Note 23. Fair Value of Financial Instruments The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and amounts included in other current assets and current liabilities that meet the definition of a financial instrument approximate fair value because of the short-term nature of these amounts. The fair value of the Company’s debt under its bank credit facility approximates its carrying value at June 30, 2016. The fair value of the Company’s debt under its bank credit facility was estimated using Level 2 inputs based on market data on companies with a corporate rating similar to CACI’s that have recently priced credit facilities. Concentrations of Credit Risk Financial instruments that potentially subject the Company to credit risk include accounts receivable and cash equivalents. Management believes that credit risk related to the Company’s accounts receivable is limited due to a large number of customers in differing segments and agencies of the U.S. government. Accounts receivable credit risk is also limited due to the credit worthiness of the U.S. government. Management believes the credit risk associated with the Company’s cash equivalents is limited due to the credit worthiness of the obligors of the investments underlying the cash equivalents. In addition, although the Company maintains cash balances at financial institutions that exceed federally insured limits, these balances are placed with high quality financial institutions. Comprehensive Income (Loss) Comprehensive income is the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Other comprehensive income (loss) refers to revenue, expenses, and gains and losses that under U.S. GAAP are included in comprehensive income, but excluded from the determination of net income. The elements within other comprehensive income consist of foreign currency translation adjustments; the changes in the fair value of interest rate swap agreements, net of tax of $3.9 million for the year ended June 30, 2016; and differences between actual amounts and estimates based on actuarial assumptions and the effect of changes in actuarial assumptions made under the Company’s post-retirement benefit plans, net of tax (see Note 15). As of June 30, 2016 and 2015, accumulated other comprehensive loss included a loss of $26.7 million and $6.7 million, respectively, related to foreign currency translation adjustments, a loss of $13.1 million and $7.1 million, respectively, related to the fair value of its interest rate swap agreements, and a loss of $1.3 million and $1.2 million, respectively, related to unrecognized post-retirement costs. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. Management estimates include estimated costs to complete and estimated award fees for contracts accounted for under ASC 605-35, amortization periods for long-lived intangible assets, recoverability of long-lived assets, reserves for accounts receivable, and reserves for contract related matters. Actual results could differ from these estimates. Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated.

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS	12 Months Ended
RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS	Jun. 30, 2016
Recently Issued Accounting Pronouncements [Abstract]
RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS	NOTE 3. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting for share-based payments, including income tax consequences and classification on the statement of cash flows. Under the new standard, all excess tax benefits and tax deficiencies will be recognized as income tax expense or benefit in the income statement as discrete items in the reporting period in which they occur. Additionally, excess tax benefits will be classified as an operating activity on the statement of cash flows. In regards to forfeitures, the entity can make an accounting policy election to either recognize forfeitures as they occur or estimate the number of awards expected to be forfeited. The guidance in ASU 2016-09 is effective for the fiscal year, and interim periods within that fiscal year, beginning after December 15, 2016. Early adoption is permitted in any interim or annual period, with adjustments reflected as of the beginning of the fiscal year of adoption. The Company early adopted this standard during the fourth quarter of FY2016. Upon adoption, the Company recognized excess tax benefits of $1.2 million during the year ended June 30, 2016 as a reduction to tax expense in our Consolidated Statements of Operations, as though ASU 2016-09 had been in effect since the beginning of FY2016. Consequently, this resulted in an increase in net income ($1.2 million), an increase in earnings per share ($0.05 per share) and a decrease in the annual effective tax rate. In addition, the excess tax benefits that were previously presented as a financing activity on our Consolidated Statements of Cash Flows are now presented as an operating activity, with prior periods retrospectively adjusted. The effect of the change on prior periods retrospectively adjusted is an increase in net cash provided by operating activities and a decrease in net cash provided by (used in) financing activities of $3.6 million and $4.8 million for the years ended June 30, 2015 and 2014, respectively. With respect to forfeitures, the Company will continue to estimate the number of awards expected to be forfeited in accordance with our existing accounting policy. In February 2016, the FASB issued ASU No. 2016-02, Leases, which amends the existing guidance on accounting for leases. The new standard requires lessees to put virtually all leases on the balance sheet by recognizing lease assets and lease liabilities. Lessor accounting is largely unchanged from that applied under previous guidance. The amended guidance is effective for the fiscal year, and interim periods within that fiscal year, beginning after December 15, 2018, and requires a modified retrospective approach. Early adoption is permitted. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements. In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, which requires all deferred tax assets and liabilities to be classified as noncurrent on the balance sheet. The guidance in ASU 2015-17 is effective for the fiscal year, and interim periods within that fiscal year, beginning after December 15, 2016, with early adoption permitted. The Company early adopted this standard as of January 1, 2016 and applied the standard retrospectively. As a result of adopting this standard, current deferred tax assets of $10.4 million were reclassified as a reduction to net non-current deferred tax liabilities as of June 30, 2015. In September 2015, the FASB issued ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which simplifies the accounting for adjustments made to preliminary amounts recognized in a business combination by eliminating the requirement to retrospectively account for those adjustments. Instead, adjustments will be recognized in the period in which the adjustments are determined, including the effect on earnings of any amounts that would have been recorded in previous periods if the accounting had been completed at the acquisition date. The Company early adopted this standard as of January 1, 2016, and will prospectively apply the standard to business combination adjustments identified after the date of adoption. In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs. Under the new standard, debt issuance costs related to a recognized debt liability are required to be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The guidance in ASU 2015-03 is effective for the fiscal year, and interim periods within that fiscal year, beginning after December 15, 2015. The Company early adopted this standard as of January 1, 2016 and applied the standard retrospectively. As a result of adopting this standard, $4.7 million of debt issuance costs were reclassified from other long-term assets to long-term debt as of June 30, 2015. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which an entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgment and estimates may be required within the revenue recognition process than are required under existing U.S. GAAP. On July 9, 2015, the FASB approved a one-year deferral of the effective date of ASU 2014-09 to annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2017, using either a full retrospective approach or a modified approach. Early adoption up to the original effective date is permitted. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and has not yet determined the method by which the Company will adopt the standard.

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=66092750

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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+ Details

ACQUISITIONS

12 Months Ended

Jun. 30, 2016

Business Combinations [Abstract]

ACQUISITIONS

NOTE 4. ACQUISITIONS

Year Ended June 30, 2016

On February 1, 2016, the Company acquired 100 percent of the outstanding shares of L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation (together, “NSS”). NSS is a prime mission partner to the U.S. Department of Defense (DoD), U.S. government intelligence agencies, and U.S. federal civilian agencies. The acquisition was integrated into the domestic operating segment and will expand CACI’s opportunities in many of our key market areas and expand our current customer base. CACI financed the acquisition by borrowing $250.0 million under its existing revolving facility and by entering into an eighth amendment and first incremental facility amendment to its credit facility to allow for the incurrence of $300.0 million in additional term loans.

The initial purchase consideration paid at closing to acquire NSS was $550.0 million plus $11.2 million representing a preliminary net working capital adjustment. Subsequent to closing, CACI estimated that a refund of $13.9 million is due from the sellers for the final net working capital adjustment, which is recorded within prepaid expenses and other current assets on the consolidated balance sheet.

CACI is in the process of finalizing its valuation of all the assets acquired and liabilities assumed. As the amounts recorded for certain assets and liabilities are preliminary in nature, they are subject to adjustment as additional information is obtained about the facts and circumstances that existed at the acquisition date. The final determination of fair values of certain assets and liabilities will be completed within the measurement period of up to one year from the acquisition date as permitted under GAAP. The NSS acquisition could necessitate the need to use the full one year measurement period to adequately analyze and assess a number of factors used in establishing the asset and liability fair values as of the acquisition date, including receivables and deferred revenue, contractual obligations, income tax obligations, and certain reserves. Any potential adjustments made could be material in relation to the preliminary values presented in the table below.

During the quarter ended June 30, 2016 we continued to obtain information to refine estimated fair values. As a result of the additional information, the Company recorded measurement period adjustments that reduced deferred income tax liabilities and goodwill by approximately $18.0 million.

Based on the Company’s preliminary valuation, the total estimated consideration of $547.3 million has been allocated to assets acquired and liabilities assumed as follows (in thousands):

Cash	$	2,596
Accounts receivable		209,833
Prepaid expenses and other current assets		12,075
Property and equipment		21,320
Intangible assets, other than goodwill		110,500
Goodwill		367,722
Other assets		437
Accounts payable		(57,616	)
Accrued compensation and benefits		(38,953	)
Accrued expenses and other current liabilities		(37,496	)
Deferred income taxes		(37,796	)
Other long-term liabilities		(5,280	)
Total consideration	$	547,342

The goodwill of $367.7 million is largely attributable to the assembled workforce of NSS and expected synergies between the Company and NSS. The estimated fair value attributed to intangible assets, which consists of customer contracts and related customer relationships, is being amortized on an accelerated basis over approximately 15 years. The fair value attributed to the intangible assets acquired was based on preliminary estimates, assumptions, and other information compiled by management, including independent valuations that utilized established valuation techniques. Of the value attributed to goodwill and intangible assets, $47.7 million is deductible for income tax purposes.

From the February 1, 2016 acquisition date through June 30, 2016, NSS generated $427.2 million of revenue and $18.8 million of net income. NSS’ net income includes the impact of $4.2 million of amortization of customer contracts and customer relationships. NSS’ net income does not include the impact of acquisition-related expenses incurred by CACI.

CACI incurred $7.3 million of acquisition-related expenses during the year ended June 30, 2016, which are included in indirect costs and selling expenses. Additionally, CACI incurred $3.9 million of integration and restructuring costs from the acquisition date through June 30, 2016. The following pro forma results are prepared for comparative purposes only and do not necessarily reflect the results that would have occurred had the acquisition occurred at the beginning of the years presented or the results which may occur in the future. The following unaudited pro forma results of operations assume the NSS acquisition had occurred on July 1, 2014 (in thousands except per share amounts):

	(Unaudited)
	Year ended June 30,
	2016			2015
Revenue	$	4,418,997		$	4,401,345
Net loss		(300,363	)		(15,480	)
Basic loss per share		(12.38	)		(0.65	)
Diluted loss per share		(12.38	)		(0.65	)

Pro forma net losses shown above include NSS’ historical goodwill impairment expense of $476.2 million and $158.7 million for the year ended June 30, 2016 and 2015, respectively. Significant pro forma adjustments incorporated into the pro forma results above include the recognition of additional amortization expense related to acquired intangible assets and additional interest expense related to debt incurred to finance the acquisition. In addition, significant nonrecurring adjustments include the elimination of non-recurring acquisition-related expenses incurred during the year ended June 30, 2016.

Other Acquisitions

The Company also completed the following acquisitions during the year ended June 30, 2016:

·

On July 1, 2015, CACI Limited acquired 100 percent of the outstanding shares of Rockshore Group Ltd (Rockshore) which was integrated into the international operating segment. Rockshore uses its expertise in data aggregation, event processing, and business logic integration to provide real-time event processing and situational awareness to the telecom, aviation, and rail sectors.

·

On December 4, 2015, the Company acquired 100 percent of the outstanding shares of a business in the United States which provides security technology services and was integrated into the domestic operating segment.

·

On March 1, 2016, CACI Limited acquired 100 percent of the outstanding shares of Purple Secure Systems Limited which was integrated into the international operating segment. Purple Secure Systems Limited is a provider of agile systems and software for national security, defense and government organizations.

·

On March 1, 2016, CACI Limited acquired 100 percent of the outstanding shares of Stream:20 Limited which was integrated into the international operating segment. Stream:20 Limited provides digital marketing and digital transformation consultancy services to commercial companies working in a variety of sectors.

The combined purchase consideration for these acquisitions was $55.6 million, which includes $31.8 million of initial cash payments, $8.4 million of deferred consideration and $15.4 million estimated fair value of contingent consideration to be paid upon achieving certain metrics. The Company recognized fair values of the assets acquired and liabilities assumed and preliminarily allocated $40.6 million to goodwill and $8.2 million to intangible assets. The intangible assets primarily consist of customer relationships and acquired technology.

Year Ended June 30, 2015

On April 1, 2015, CACI acquired 100 percent of the outstanding shares of LTC Engineering Associates, Inc. (LTC) for a purchase price of $16.0 million.

Headquartered in Florida, LTC employs approximately 50 associates. LTC is a highly specialized provider of technical engineering solutions and services to the intelligence and DoD communities in the areas of software engineering, cybersecurity, signals intelligence, communications intelligence, and digital signals processing. This acquisition expands our capabilities in our C4ISR, intelligence, and cyber market areas and complements our 2013 acquisition of Six3 Systems, Inc. CACI recorded $8.9 million of goodwill and $4.8 million of intangible assets related to customer relationships associated with this acquisition.

Year Ended June 30, 2014

On November 15, 2013, CACI acquired 100 percent of the outstanding shares of Six3 Systems. Six3 Systems provides highly specialized support to the national security community in the areas of cyber and signals intelligence; intelligence, surveillance, and reconnaissance; and intelligence operations. The acquisition expanded CACI’s high-growth Cyberspace market, as well as built on CACI’s capabilities in its high-volume C4ISR and Intelligence markets. In connection with the acquisition, on November 15, 2013, CACI entered into a fifth amendment (the Amendment) to its credit agreement dated as of October 21, 2010 (the Credit Agreement). The Amendment modified the Credit Agreement to allow for the incurrence of $700 million in additional term loans and a $100 million increase in the revolving facility to finance the acquisition of Six3 Systems.

The initial purchase consideration paid at closing in cash to acquire Six3 Systems was $820.0 million plus $25.8 million representing the estimated cash and net working capital adjustment, as defined in the agreement. Of the payment made at closing, $5.0 million was deposited into an escrow account pending final determination of the cash and net working capital acquired and $35.0 million was deposited into an escrow account to secure the sellers’ indemnification obligations (the Indemnification Amount). During the three months ended March 31, 2014, the parties agreed on the final cash and net working capital acquired and the $5.0 million in escrow was distributed in full to the sellers.

From the date of acquisition through June 30, 2014, Six3 Systems generated $268.4 million of revenue and $8.9 million of net income. Six3 Systems’ net income includes the impact of $12.9 million of amortization of customer contracts and customer relationships, as well as $4.2 million in expense associated with retention bonuses associated with retention agreements with certain Six3 Systems executives.

CACI incurred $11.7 million of acquisition-related expenses during the year ended June 30, 2014, including expenses associated with retention bonuses. In addition, CACI incurred a $4.1 million indirect loss on extinguishment of debt.

The following pro forma results are prepared for comparative purposes only and do not necessarily reflect the results that would have occurred had the acquisition occurred at the beginning of the years presented or the results which may occur in the future. The following unaudited pro forma results of operations assume the Six3 Systems acquisition had occurred on July 1, 2012 (in thousands except per share amounts):

	(Unaudited)
	Year ended June 30,
	2014
Revenue	$	3,742,394
Net income		150,881
Basic earnings per share		6.44
Diluted earnings per share		6.00

Cash And Cash Equivalents [Abstract]

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 805
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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+ Details

CASH AND CASH EQUIVALENTS

12 Months Ended

Jun. 30, 2016

CASH AND CASH EQUIVALENTS

NOTE 5. CASH AND CASH EQUIVALENTS

Cash and cash equivalents consisted of the following (cost approximates fair value) (in thousands):

	June 30,
	2016		2015
Cash	$	45,117	$	31,768
Money market funds		3,965		3,596
Total cash and cash equivalents	$	49,082	$	35,364

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

ACCOUNTS RECEIVABLE

12 Months Ended

Jun. 30, 2016

Accounts Receivable [Abstract]

ACCOUNTS RECEIVABLE

NOTE 6. ACCOUNTS RECEIVABLE

Total accounts receivable, net of allowance for doubtful accounts of $3.0 million and $3.2 million at June 30, 2016 and 2015, respectively, consisted of the following (in thousands):

	June 30,
	2016		2015
Billed receivables	$	599,206	$	444,869
Billable receivables at end of period		172,585		102,796
Unbilled receivables pending receipt of contractual documents authorizing billing		32,026		48,490
Total accounts receivable, current		803,817		596,155
Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months		8,330		8,188
Total accounts receivable	$	812,147	$	604,343

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

Capitalized External Software Development Costs [Abstract]

GOODWILL

12 Months Ended

Jun. 30, 2016

Goodwill [Abstract]

GOODWILL

NOTE 7. GOODWILL

The changes in the carrying amount of goodwill for the years ended June 30, 2016 and 2015 are as follows (in thousands):

	Domestic		International			Total
Balance at June 30, 2014	$	2,099,822	$	88,747		$	2,188,569
Goodwill acquired		8,946		—			8,946
Foreign currency translation		—		(7,699	)	$	(7,699	)
Balance at June 30, 2015	$	2,108,768	$	81,048		$	2,189,816
Goodwill acquired		378,380		29,939			408,319
Foreign currency translation		—		(12,792	)		(12,792	)
Balance at June 30, 2016	$	2,487,148	$	98,195		$	2,585,343

INTANGIBLE ASSETS

12 Months Ended

Jun. 30, 2016

Intangible Assets [Abstract]

INTANGIBLE ASSETS

NOTE 8. INTANGIBLE ASSETS

Intangible assets consisted of the following (in thousands):

	June 30,
	2016			2015
Intangible assets
Customer contracts and related customer relationships	$	635,826		$	520,213
Acquired technologies		28,074			27,177
Covenants not to compete		3,321			3,417
Other		1,551			1,581
Intangible assets		668,772			552,388
Less accumulated amortization
Customer contracts and related customer relationships		(363,412	)		(328,217	)
Acquired technologies		(25,693	)		(24,728	)
Covenants not to compete		(3,245	)		(3,241	)
Other		(1,050	)		(1,020	)
Accumulated amortization		(393,400	)		(357,206	)
Total intangible assets, net	$	275,372		$	195,182

Intangible assets are primarily amortized on an accelerated basis over periods ranging from one to fifteen years. The weighted-average period of amortization for customer contracts and related customer relationships as of June 30, 2016 is 14 years, and the weighted-average remaining period of amortization is 11.9 years. The weighted-average period of amortization for acquired technologies as of June 30, 2016 is 10 years, and the weighted-average remaining period of amortization is 5.6 years.

Amortization expense for the years ended June 30, 2016, 2015 and 2014 was $38.0 million, $39.5 million, and $38.6 million, respectively. Expected amortization expense for each of the fiscal years through June 30, 2021 and for years thereafter is as follows (in thousands):

	Amount
Year ending June 30, 2017	$	40,631
Year ending June 30, 2018		36,134
Year ending June 30, 2019		31,507
Year ending June 30, 2020		27,045
Year ending June 30, 2021		23,843
Thereafter		116,212
Total intangible assets, net	$	275,372

PROPERTY AND EQUIPMENT

12 Months Ended

Jun. 30, 2016

Property And Equipment [Abstract]

PROPERTY AND EQUIPMENT

NOTE 9. PROPERTY AND EQUIPMENT

Property and equipment consisted of the following (in thousands):

	June 30,
	2016			2015
Equipment and furniture	$	126,437		$	107,098
Leasehold improvements		92,103			79,508
Property and equipment, at cost		218,540			186,606
Less accumulated depreciation and amortization		(137,178	)		(122,917	)
Total property and equipment, net	$	81,362		$	63,689

Depreciation expense, including amortization of leasehold improvements, was $23.6 million, $22.7 million and $22.7 million for the years ended June 30, 2016, 2015 and 2014, respectively.

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS

12 Months Ended

Jun. 30, 2016

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS

NOTE 10. CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS

A summary of changes in capitalized external software development costs, including costs capitalized and amortized during each of the years in the three-year period ended June 30, 2016, is as follows (in thousands):

	Year ended June 30,
	2016			2015			2014
Capitalized software development costs, beginning of year	$	15,255		$	16,594		$	12,742
Costs capitalized		3,407			2,572			7,742
Amortization		(3,230	)		(3,911	)		(3,890	)
Capitalized software development costs, end of year	$	15,432		$	15,255		$	16,594

Capitalized software development costs are presented within other current assets and other long-term assets in the accompanying consolidated balance sheets.

The entire disclosure for research, development, and computer software activities, including contracts and arrangements to be performed for others and with federal government. Includes costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility and in-process research and development acquired in a business combination consummated during the period.

Accrued Compensation And Benefits [Abstract]

ACCRUED COMPENSATION AND BENEFITS

12 Months Ended

Jun. 30, 2016

ACCRUED COMPENSATION AND BENEFITS

NOTE 11. ACCRUED COMPENSATION AND BENEFITS

Accrued compensation and benefits consisted of the following (in thousands):

	June 30,
	2016		2015
Accrued salaries and withholdings	$	114,990	$	97,513
Accrued leave		85,717		66,162
Accrued fringe benefits		27,655		22,155
Total accrued compensation and benefits	$	228,362	$	185,830

The entire disclosure for compensation costs, including compensated absences accruals, compensated absences liability, deferred compensation arrangements and income statement compensation items. Deferred compensation arrangements may include a description of an arrangement with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares (units) issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.

Other Accrued Expenses And Current Liabilities [Abstract]

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES

12 Months Ended

Jun. 30, 2016

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES

NOTE 12. OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES

Other accrued expenses and current liabilities consisted of the following (in thousands):

	June 30,
	2016		2015
Vendor obligations	$	109,671	$	76,729
Deferred revenue		41,407		25,898
Other		36,501		15,419
Total other accrued expenses and current liabilities	$	187,579	$	118,046

LONG TERM DEBT

12 Months Ended

Jun. 30, 2016

Long-Term Debt [Abstract]

LONG TERM DEBT

NOTE 13. LONG TERM DEBT

Long-term debt consisted of the following (in thousands):

	June 30,
	2016			2015
Bank credit facility – term loans	$	1,032,833		$	779,297
Bank credit facility – revolver loans		440,000			295,000
Principal amount of long-term debt		1,472,833			1,074,297
Less unamortized debt issuance costs (1)		(16,789	)		(10,733	)
Total long-term debt		1,456,044			1,063,564
Less current portion		(53,965	)		(38,965	)
Long-term debt, net of current portion	$	1,402,079		$	1,024,599

⁽¹⁾	Balance as of June 30, 2015 has been adjusted for the reclassification of debt issuance costs related to the adoption of ASU 2015-03. See Note 3 for additional information.

Bank Credit Facility

The Company has a $1,981.3 million credit facility (the Credit Facility), which consists of an $850.0 million revolving credit facility (the Revolving Facility) and a $1,131.3 million term loan (the Term Loan). The Revolving Facility has subfacilities of $100.0 million for same-day swing line loan borrowings and $25.0 million for stand-by letters of credit. At any time and so long as no default has occurred, the Company has the right to increase the Revolving Facility or the Term Loan in an aggregate principal amount of up to the greater of $400.0 million or an amount subject to 2.75 times senior secured leverage, calculated assuming the Revolving Facility is fully drawn, with applicable lender approvals. The Credit Facility is available to refinance existing indebtedness and for general corporate purposes, including working capital expenses and capital expenditures.

The Credit Facility was amended during the third quarter of FY2016 in connection with the Company’s acquisition of NSS (see Note 4). CACI financed the transaction by borrowing $250.0 million under its existing Revolving Facility and by entering into an eighth amendment and first incremental facility amendment to its Credit Facility to allow for the incurrence of $300.0 million in additional Term Loans.

The Revolving Facility is a secured facility that permits continuously renewable borrowings of up to $850.0 million. As of June 30, 2016, the Company had $440.0 million outstanding under the Revolving Facility, no borrowings on the swing line and an outstanding letter of credit of $0.4 million. The Company pays a quarterly facility fee for the unused portion of the Revolving Facility.

The Term Loan is a five-year secured facility under which principal payments are due in quarterly installments of $13.5 million through June 30, 2018 and $27.0 million thereafter until the balance is due in full on June 1, 2020. As of June 30, 2016, the Company had $1,032.8 million outstanding under the Term Loan.

The interest rates applicable to loans under the Credit Facility are floating interest rates that, at the Company’s option, equal a base rate or a Eurodollar rate plus, in each case, an applicable rate based upon the Company’s consolidated total leverage ratio. As of June 30, 2016, the effective interest rate, including the impact of the Company’s floating-to-fixed interest rate swap agreements and excluding the effect of amortization of debt financing costs, for the outstanding borrowings under the Credit Facility was 2.99 percent.

The Credit Facility requires the Company to comply with certain financial covenants, including a maximum senior secured leverage ratio, a maximum total leverage ratio and a minimum fixed charge coverage ratio. The Credit Facility also includes customary negative covenants restricting or limiting the Company’s ability to guarantee or incur additional indebtedness, grant liens or other security interests to third parties, make loans or investments, transfer assets, declare dividends or redeem or repurchase capital stock or make other distributions, prepay subordinated indebtedness and engage in mergers, acquisitions or other business combinations, in each case except as expressly permitted under the Credit Facility. As of June 30, 2016, the Company was in compliance with all of the financial covenants. A majority of the Company’s assets serve as collateral under the Credit Facility.

The Company recorded $18.7 million of debt issuance costs as of June 30, 2016. All debt issuance costs are being amortized from the date incurred to the expiration date of the Credit Facility. As of June 30, 2016, the unamortized balance of $16.8 million is included as a reduction to the carrying value of long-term debt.

Convertible Notes Payable

Effective May 16, 2007, the Company issued at par value $300.0 million convertible notes (the Convertible Notes) which matured on May 1, 2014. Upon maturity, the aggregate conversion value was $406.8 million. Accordingly, the Company paid note holders the outstanding principal value totaling $300.0 million in cash and issued approximately 1.4 million shares of our common stock for the remaining aggregate conversion value. Concurrently with the issuance of our common stock upon conversion, the Company received 1.4 million shares of our common stock pursuant to the terms of the call option hedge transaction described below. The Company included these shares within treasury stock on our consolidated balance sheet.

The Company separately accounted for the liability and the equity (conversion option) components of the Convertible Notes and recognized interest expense on the Convertible Notes using an interest rate in effect for comparable debt instruments that do not contain conversion features. The effective interest rate for the Convertible Notes excluding the conversion option was determined to be 6.9 percent on initial recognition. The fair value of the liability component of the Convertible Notes was calculated to be $221.9 million at May 16, 2007, the date of issuance. The excess of the $300.0 million of gross proceeds over the $221.9 million fair value of the liability component, or $78.1 million, represents the fair value of the equity component, which was recorded, net of income tax effect, as additional paid-in capital within shareholders’ equity. This $78.1 million difference represents a debt discount that was amortized over the seven-year term of the Convertible Notes as a non-cash component of interest expense and was fully amortized at maturity. The components of interest expense related to the Notes were as follows (in thousands):

	June 30,
	2016		2015		2014
Coupon interest	$	—	$	—	$	5,313
Non-cash amortization of discount		—		—		11,421
Amortization of issuance costs		—		—		683
Total	$	—	$	—	$	17,417

In connection with the issuance of the Convertible Notes in May 2007, we entered into separate call option hedge and warrant transactions to reduce the potential dilutive impact upon the conversion of the Convertible Notes. The Call Options and the Warrants (each as defined below) are separate and legally distinct instruments that bind CACI and the counterparties and have no binding effect on the holders of the Convertible Notes.

Call Options and Warrants

The Company purchased in a private transaction at a cost of $84.4 million call options (the Call Options) to purchase approximately 5.5 million shares of its common stock at a price equal to the conversion price of $54.65 per share. The cost of the Call Options was recorded as a reduction of additional paid-in capital. The Call Options allowed CACI to receive shares of its common stock from the counterparties equal to the amount of common stock related to the excess conversion value that CACI would pay the holders of the Convertible Notes upon conversion. The Company exercised the call options upon the maturity and conversion of the Convertible Notes and received 1.4 million shares of our common stock.

In addition, the Company sold warrants (the Warrants) to issue approximately 5.5 million shares of CACI common stock at a strike price of $68.31 per share. The proceeds from the sale of the Warrants totaled $56.5 million and were recorded as an increase to additional paid-in capital. The Warrants settled daily over 90 trading days which began in August 2014 and ended in December 2014. We issued 497,550 shares for settlement of the Warrants.

Cash Flow Hedges

The Company periodically uses derivative financial instruments as part of a strategy to manage exposure to market risks associated with interest rate fluctuations. The Company has entered into several floating-to-fixed interest rate swap agreements for an aggregate notional amount of $900.0 million which hedge a portion of the Company’s floating rate indebtedness. The swaps mature at various dates through 2022. The Company has designated the swaps as cash flow hedges. Unrealized gains are recognized as assets while unrealized losses are recognized as liabilities. The interest rate swap agreements are highly correlated to the changes in interest rates to which the Company is exposed. Unrealized gains and losses on these swaps are designated as effective or ineffective. Realized gains and losses in connection with each required interest payment are reclassified from accumulated other comprehensive income or loss to interest expense. The Company does not hold or issue derivative financial instruments for trading purposes.

The effect of derivative instruments in the consolidated statements of operations and accumulated other comprehensive loss for the years ended June 30, 2016, 2015 and 2014 is as follows (in thousands):

	Interest Rate Swaps
	2016			2015			2014
(Loss) gain recognized in other comprehensive income	$	(14,859	)	$	(9,422	)	$	(4,999	)
Amounts reclassified to earnings from accumulated other comprehensive loss	$	8,867		$	7,024		$	1,356
Net current period other comprehensive income (loss)	$	(5,992	)	$	(2,398	)	$	(3,643	)

The aggregate maturities of long-term debt at June 30, 2016 are as follows (in thousands):

Year ending June 30,
2017	$	53,965
2018		53,965
2019		107,930
2020		1,256,973
Principal amount of long-term debt		1,472,833
Less unamortized debt issuance costs		(16,789	)
Total long-term debt	$	1,456,044

LEASES

12 Months Ended

Jun. 30, 2016

Leases [Abstract]

LEASES

NOTE 14. LEASES

The Company conducts its operations from leased office facilities, all of which are classified as operating leases and expire over the next 14 years. Future minimum lease payments due under non-cancelable leases as of June 30, 2016, are as follows (in thousands):

Year ending June 30:
2017	$	65,668
2018		56,185
2019		52,973
2020		42,303
2021		35,355
Thereafter		99,190
Total minimum lease payments	$	351,674

The minimum lease payments above are shown net of sublease rental income of $0.4 million scheduled to be received over the next 12 months under non-cancelable sublease agreements.

Rent expense incurred under operating leases for the years ended June 30, 2016, 2015, and 2014 totaled $62.8 million, $54.6 million, and $51.8 million, respectively.

Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

Other Long-Term Liabilities [Abstract]

OTHER LONG-TERM LIABILITIES

12 Months Ended

Jun. 30, 2016

OTHER LONG-TERM LIABILITIES

NOTE 15. OTHER LONG-TERM LIABILITIES

Other long-term liabilities consisted of the following (in thousands):

	June 30,
	2016		2015
Deferred rent, net of current portion	$	32,907	$	28,038
Interest rate swap agreements		21,609		11,728
Deferred acquisition and contingent consideration		18,642		—
Deferred revenue		7,234		7,784
Accrued post-retirement obligations		6,569		6,103
Reserve for unrecognized tax benefits		249		5,880
Other		110		848
Total other long-term liabilities	$	87,320	$	60,381

Deferred rent liabilities result from recording rent expense and incentives for tenant improvements on a straight-line basis over the life of the respective lease.

Accrued post-retirement obligations include projected liabilities for benefits the Company is obligated to provide under long-term care, group health, and executive life insurance plans, each of which is unfunded. Plan benefits are provided to certain current and former executives, their dependents and other eligible employees, as defined. Post-retirement obligations also include accrued benefits under supplemental retirement benefit plans covering certain executives. The expense recorded under these plans was $0.4 million during the year ended June 30, 2016 and $0.3 million during the year ended June 30, 2015, respectively.

The Company has entered into floating-to-fixed interest rate swap agreements related to a portion of the Company’s floating rate indebtedness (see Note 13). The fair value of the swap agreements as of June 30, 2016 and 2015 is a liability of approximately $21.6 million and $11.7 million, respectively.

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION

12 Months Ended

Jun. 30, 2016

Business Segment Information [Abstract]

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION

NOTE 16. BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION

Segment Information

The Company reports operating results and financial data in two segments: domestic operations and international operations. Domestic operations provide information solutions and services to its customers. Its customers are primarily U.S. federal government agencies. Other customers of the Company’s domestic operations include state and local governments and commercial enterprises. The Company does not measure revenue or profit by its major market areas or service offerings, either for internal management or external financial reporting purposes, as it would be impractical to do so. The Company places employees in locations around the world in support of its customers. International operations offer services to both commercial and non-U.S. government customers primarily within the Company’s business systems and enterprise IT markets. The Company evaluates the performance of its operating segments based on net income attributable to CACI. Summarized financial information concerning the Company’s reportable segments is shown in the following tables.

	Domestic Operations		International Operations		Total
	(in thousands)
Year Ended June 30, 2016
Revenue from external customers	$	3,593,924	$	150,129	$	3,744,053
Net income attributable to CACI		129,568		13,231		142,799
Net assets		1,476,924		130,389		1,607,313
Goodwill		2,487,148		98,195		2,585,343
Total long-term assets		2,943,896		121,607		3,065,503
Total assets		3,798,013		189,328		3,987,341
Capital expenditures		18,339		2,496		20,835
Depreciation and amortization		60,637		4,115		64,752

Year Ended June 30, 2015
Revenue from external customers	$	3,168,864	$	144,588	$	3,313,452
Net income attributable to CACI		114,658		11,537		126,195
Net assets		1,343,152		137,120		1,480,272
Goodwill		2,108,767		81,049		2,189,816
Total long-term assets (1)		2,473,470		102,450		2,575,920
Total assets (1)		3,055,782		186,248		3,242,030
Capital expenditures		15,324		2,120		17,444
Depreciation and amortization		61,587		4,496		66,083

Year Ended June 30, 2014
Revenue from external customers	$	3,421,544	$	143,018	$	3,564,562
Net income attributable to CACI		124,599		10,717		135,316
Net assets		1,221,641		137,525		1,359,166
Goodwill		2,099,821		88,748		2,188,569
Total long-term assets (1)		2,503,805		113,297		2,617,102
Total assets (1)		3,141,602		188,655		3,330,257
Capital expenditures		13,737		1,542		15,279
Depreciation and amortization		61,207		3,974		65,181

⁽¹⁾	Adjusted for the reclassification of debt issuance costs and deferred taxes pursuant to the adoption of ASU 2015-03 and ASU 2015-17. See Note 3 to the Consolidated Financial Statements for further information.

Interest income and interest expense are not presented above as the amounts attributable to the Company’s international operations are insignificant.

Customer Information

The Company earned 93.5 percent, 93.7 percent and 94.0 percent of its revenue from various agencies and departments of the U.S. government for the years ended June 30, 2016, 2015 and 2014, respectively. Revenue by customer sector was as follows (dollars in thousands):

	Year ended June 30,
	2016		%			2015		%			2014		%
Department of Defense	$	2,439,329		65.1	%	$	2,217,031		66.9	%	$	2,578,024		72.3	%
Federal civilian agencies		1,062,508		28.4			888,191		26.8			771,662		21.7
Commercial and other		227,145		6.1			202,858		6.1			199,521		5.6
State and local governments		15,071		0.4			5,372		0.2			15,355		0.4
Total revenue	$	3,744,053		100.0	%	$	3,313,452		100.0	%	$	3,564,562		100.0	%

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

INVESTMENTS IN JOINT VENTURES	12 Months Ended
INVESTMENTS IN JOINT VENTURES	Jun. 30, 2016
Investments In Joint Ventures [Abstract]
INVESTMENTS IN JOINT VENTURES	NOTE 17. INVESTMENTS IN JOINT VENTURES AC FIRST LLC In July 2009, the Company entered into a joint venture with AECOM Government Services, Inc. (AGS), a division of AECOM Technology Corporation, called AC FIRST LLC (AC FIRST). The companies partnered in the venture to jointly pursue work under a U.S. Army contract. The Company owned 49 percent of AC FIRST and AGS owned 51 percent. The Company accounted for its interest in AC FIRST using the equity method of accounting as the Company determined it was not the primary beneficiary of AC First. In June 2016 the Company redeemed its 49 percent interest in the joint venture. In accordance with the terms of the redemption agreement the Company received 90 percent of its investment in the joint venture in July 2016. The Company has a note receivable of $5.0 million for the redemption as of June 30, 2016 in other current assets. The remaining 10 percent withheld will be distributed when the contract years for which the Company was a member of the joint venture have been audited, settled, or are otherwise no longer subject to audit claims.

OTHER COMMITMENTS AND CONTINGENCIES	12 Months Ended
OTHER COMMITMENTS AND CONTINGENCIES	Jun. 30, 2016
Commitments And Contingencies [Abstract]
OTHER COMMITMENTS AND CONTINGENCIES	NOTE 18. OTHER COMMITMENTS AND CONTINGENCIES General Legal Matters The Company is involved in various lawsuits, claims, and administrative proceedings arising in the normal course of business. Management is of the opinion that any liability or loss associated with such matters, either individually or in the aggregate, will not have a material adverse effect on the Company’s operations and liquidity. Government Contracting Payments to the Company on cost-plus-fee and time-and-materials contracts are subject to adjustment upon audit by the Defense Contract Audit Agency (DCAA) and other government agencies that do not utilize DCAA’s services. The DCAA is currently nearing completion of its audit of the Company’s incurred cost submissions for the year ended June 30, 2010, and an intelligence agency is nearing completion of its audit of direct costs on selected contracts through our fiscal year ended June 30, 2012. DCAA audits of our incurred cost submissions for the years ended June 30, 2011 and 2012 have commenced, and an intelligence agency has commenced audits of direct costs on selected contracts through our fiscal year ended June 30, 2015. In the opinion of management, adjustments that may result from these audits and the audits not yet started are not expected to have a material effect on the Company’s financial position, results of operations, or cash flows as the Company has accrued its best estimate of potential disallowances. Additionally, the DCAA continually reviews the cost accounting and other practices of government contractors, including the Company. In the course of those reviews, cost accounting and other issues are identified, discussed and settled. On March 26, 2012, the Company received a subpoena from the Defense Criminal Investigative Service seeking documents related to one of the Company’s contracts for the period of January 1, 2007 through March 26, 2012. The Company has provided documents responsive to the subpoena and is cooperating fully with the government’s investigation. The Company has accrued its current best estimate of the potential outcome within its estimated range of zero to $3.9 million. On April 9, 2012, the Company received a letter from the Department of Justice (DoJ) informing the Company that the DoJ is investigating whether the Company violated the civil False Claims Act by submitting false claims to receive federal funds pursuant to a GSA contract. Specifically, the DoJ is investigating whether the Company failed to comply with contract requirements and applicable regulations by improperly billing for certain contracting personnel under the contract. The Company has not accrued any liability as based on its present knowledge of the facts, it does not believe an unfavorable outcome is probable. We pursued an appeal at the ASBCA of a determination made by the Army Contracting Command in response to an audit performed on behalf of the Special Inspector General for Afghanistan Reconstruction (SIGAR) of two task orders under which we performed work in Afghanistan. We appealed the Army’s determination that our methods for computing employee danger pay were incorrect, and needed to be changed. In a decision dated July 18, 2016, the Armed Services Board of Contract Appeals ruled in favor of the Company. We are also pursuing appeals at the ASBCA of determinations and demands made by the DCMA associated with questioned direct costs from DCAA audits of our incurred cost submissions for our fiscal years ending June 30 2006, 2007, and 2008. The Company has not accrued any liabilities for these determinations and demands and does not believe unfavorable outcomes are probable. German Value-Added Taxes The Company is under audit by the German tax authorities for issues related to value-added tax returns. At this time, the Company has not been assessed any deficiency and, based on sound factual and legal precedent, believes it is in compliance with the applicable value-added tax regulations. The Company has not accrued any liability for this matter because an unfavorable outcome is not considered probable. The Company estimates the range of reasonably possible losses to be from zero to $3.9 million. Virginia Sales and Use Tax Audit The Company is under audit for sales and use tax related issues by the Commonwealth of Virginia. The Company has accrued its current best estimate of the probable outcome within its estimated range of $3.0 million to $5.3 million.

INCOME TAXES

12 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

INCOME TAXES

NOTE 19. INCOME TAXES

The domestic and foreign components of income before provision for income taxes are as follows (in thousands):

	Year ended June 30,
	2016		2015		2014
Domestic	$	207,641	$	187,332	$	204,879
Foreign		15,971		14,190		13,763
Income before income taxes	$	223,612	$	201,522	$	218,642

The components of income tax expense are as follows (in thousands):

	Year ended June 30,
	2016			2015			2014
Current:
Federal	$	54,507		$	37,159		$	53,055
State and local		9,401			8,080			11,456
Foreign		3,337			3,066			3,256
Total current		67,245			48,305			67,767
Deferred:
Federal		11,978			23,261			12,580
State and local		2,028			3,964			2,680
Foreign		(438	)		(203	)		299
Total deferred		13,568			27,022			15,559
Total income tax expense	$	80,813		$	75,327		$	83,326

Income tax expense differs from the amounts computed by applying the statutory U.S. income tax rate of 35 percent as a result of the following (in thousands):

	Year ended June 30,
	2016			2015			2014
Expected tax expense computed at federal rate	$	78,264		$	70,533		$	76,525
State and local taxes, net of federal benefit		7,429			7,828			9,188
Nondeductible items		2,936			2,166			1,150
Effect of foreign tax rates		(2,308	)		(2,135	)		(1,885	)
Other		(5,508	)		(3,065	)		(1,652	)
Total income tax expense	$	80,813		$	75,327		$	83,326

The tax effects of temporary differences that give rise to deferred taxes are presented below (in thousands):

	June 30,
	2016			2015
Deferred tax assets:
Deferred compensation and post-retirement obligations	$	35,724		$	34,963
Reserves and accruals		39,903			25,498
Stock-based compensation		9,833			7,242
Interest rate swap		8,505			4,616
Deferred rent		5,765			4,886
Other		8,353			11,760
Total deferred tax assets		108,083			88,965
Deferred tax liabilities:
Goodwill and other intangible assets		(320,811	)		(258,498	)
Unbilled revenue		(18,740	)		(15,652	)
Prepaid expenses		(8,308	)		(5,452	)
Other		(8,682	)		(9,600	)
Total deferred tax liabilities		(356,541	)		(289,202	)
Net deferred tax liability	$	(248,458	)	$	(200,237	)

The Company is subject to income taxes in the U.S. and various state and foreign jurisdictions. Tax statutes and regulations within each jurisdiction are subject to interpretation and require the application of significant judgment. The Company's consolidated federal income tax returns through June 30, 2012 are no longer subject to audit. The Company is currently under examination by one state jurisdiction for years ended June 30, 2013 and June 30, 2014. The Company does not expect the resolution of these examinations to have a material impact on its results of operations, financial condition or cash flows.

During the years ended June 30, 2016 and 2015, the Company’s income tax expense was favorably impacted by non-taxable gains on assets invested in corporate-owned life insurance (COLI) policies, and tax benefits related to deductions claimed for income from domestic production activities.

U.S. income taxes have not been provided for undistributed earnings of foreign subsidiaries that have been permanently reinvested outside the United States. As of June 30, 2016, the estimated deferred tax liability associated with these undistributed earnings is approximately $13.3 million.

The Company’s total liability for unrecognized tax benefits as of June 30, 2016, 2015 and 2014 was approximately $0.4 million, $6.2 million and $9.6 million, respectively. Of the unrecognized tax benefits at June 30, 2016, 2015 and 2014, $0.4 million, $1.3 million and $2.4 million, respectively, if recognized, would impact the Company’s effective tax rate. A reconciliation of the beginning and ending amount of unrecognized benefits is shown in the table below (in thousands):

	Year ended June 30,
	2016			2015			2014
Beginning of year	$	6,220		$	9,636		$	8,184
Additions based on current year tax positions		89			1,468			2,023
Reductions based on changes to prior year tax positions		—			(3,522	)		—
Lapse of statute of limitations		(128	)		(1,344	)		(426	)
Settlement with taxing authorities		(5,783	)		(18	)		(145	)
End of year	$	398		$	6,220		$	9,636

The Company recognizes net interest and penalties as a component of income tax expense. Over the next 12 months, the Company does not expect a significant increase or decrease in the unrecognized tax benefits recorded at June 30, 2016. As of June 30, 2016, approximately $0.2 million of the unrecognized tax benefits are included in other long-term liabilities, with the remainder included in other balance sheet accounts.

RETIREMENT SAVINGS PLANS	12 Months Ended
RETIREMENT SAVINGS PLANS	Jun. 30, 2016
Retirement Savings Plans [Abstract]
RETIREMENT SAVINGS PLANS	NOTE 20. RETIREMENT SAVINGS PLANS 401(k) Plan The Company maintains a defined contribution plan under Section 401(k) of the Internal Revenue Code, the CACI $MART Plan (the 401(k) Plan). Employees can contribute up to 75 percent (subject to certain statutory limitations) of their total cash compensation. The Company provides matching contributions equal to 50 percent of the amount of salary deferral employees elect, up to 6 percent of each employee’s total calendar year cash compensation, as defined. The Company may also make discretionary profit sharing contributions to the 401(k) Plan. Employee contributions vest immediately. Employer contributions vest in full after three years of employment. Total 401(k) Plan Company contribution expense for the years ended June 30, 2016, 2015, and 2014 were $25.5 million, $22.5 million, and $21.9 million, respectively. Six3 Retirement Savings Plans The Company maintains qualified defined contribution 401(k) profit-sharing plans that cover eligible employees. Participants may make voluntary contributions to the plans up to the maximum amount allowable by law. The Company will match employee contributions to the plans in accordance with the plan documents. Matching contributions vest to participants immediately. Company contribution expense for the year ended June 30, 2016 and 2015 was zero and $0.7 million, respectively, as the plans were terminated during the second half of FY2015 when participants became eligible for the CACI $MART plan. The Company maintains several qualified 401(k) profit-sharing plans (PSP) that cover eligible employees. Employees are eligible to participate in the PSP beginning on the first of the month following the start of employment and attainment of age 18. Under the PSP, the Company may make discretionary contributions based on a percentage of the total compensation of all eligible participants. Company contribution expense for the year ended June 30, 2016 and 2015 was $20.6 million and $18.0 million, respectively. International Operations Defined Contribution Plans The Company maintains defined contribution pension plans in the U.K. and in the Netherlands. In the U.K., employees can elect the amount of pension contributions that they wish to make subject to certain U.K. tax limits. Under the Dutch plan, the amounts the Company contributes are based on the employee’s age. In both countries, the contributions are deemed to be company contributions and vest immediately. Contributions to these plans and their predecessor plans for the years ended June 30, 2016, 2015, and 2014 were $1.4 million, $1.1 million, and $1.1 million, respectively. Supplemental Savings Plan The Company maintains the Supplemental Savings Plan through which, on a calendar year basis, officers at the director level and above can elect to defer for contribution to the Supplemental Savings Plan up to 50 percent of their base compensation and up to 100 percent of their bonuses and commissions. The Company provides a contribution of 5 percent of compensation for each participant’s compensation that exceeds the limit as set forth in IRC 401(a)(17) (currently $265,000 per year). The Company also has the option to make annual discretionary contributions. Company contributions vest over a 5-year period, and vesting is accelerated in the event of a change of control of the Company. Participant deferrals and Company contributions will be credited with the rate of return based on the investment options and asset allocations selected by the Participant. Participants may change their asset allocation as often as daily, if they so choose. A Rabbi Trust has been established to hold and provide a measure of security for the investments that finance benefit payments. Distributions from the Supplemental Savings Plan are made upon retirement, termination, death, or total disability. The Supplemental Savings Plan also allows for in-service distributions. Supplemental Savings Plan obligations due to participants totaled $83.9 million at June 30, 2016, of which $6.9 million is included in accrued compensation and benefits in the accompanying consolidated balance sheet. Supplemental Savings Plan obligations increased by $1.2 million during the year ended June 30, 2016, consisting of $2.0 million of investment gains, $6.9 million of participant compensation deferrals, and $0.4 million of Company contributions, offset by $8.1 million of distributions. The Company maintains COLI assets in a Rabbi Trust to offset the obligations under the Supplemental Savings Plan. The value of the COLI in the Rabbi Trust was $88.8 million at June 30, 2016 and COLI gains were $1.8 million for the year ended June 30, 2016. The value of the COLI in the Rabbi Trust was $89.0 million at June 30, 2015 and COLI gains were $2.0 million for the year ended June 30, 2015. Contribution expense for the Supplemental Savings Plan during the years ended June 30, 2016, 2015, and 2014, was $0.5 million, $0.5 million, and $0.3 million, respectively.

STOCK PLANS AND STOCK-BASED COMPENSATION

12 Months Ended

Jun. 30, 2016

STOCK PLANS AND STOCK-BASED COMPENSATION

NOTE 21. STOCK PLANS AND STOCK-BASED COMPENSATION

For stock options, SSARs and non-performance-based RSUs, stock-based compensation expense is recognized on a straight-line basis ratably over the respective vesting periods. For RSUs subject to graded vesting schedules for which vesting is based on achievement of a performance metric in addition to grantee service (performance-based RSUs), stock-based compensation expense is recognized on an accelerated basis by treating each vesting tranche as if it was a separate grant. A summary of the components of stock-based compensation expense recognized during the years ended June 30, 2016, 2015, and 2014, together with the income tax benefits realized, is as follows (in thousands):

	Year ended June 30,
	2016		2015		2014
Stock-based compensation included in indirect costs and selling expense:
Restricted stock and RSU expense	$	17,919	$	14,072	$	11,516
SSARs and non-qualified stock option expense		—		—		41
Total stock-based compensation expense	$	17,919	$	14,072	$	11,557
Income tax benefit recognized for stock-based compensation expense	$	6,476	$	5,260	$	4,392

The Company recognizes the effect of expected forfeitures of equity grants by estimating an expected forfeiture rate for grants of equity instruments. Amounts recognized for expected forfeitures are subsequently adjusted periodically and at major vesting dates to reflect actual forfeitures.

The incremental income tax benefits realized upon the exercise or vesting of equity instruments are reported as operating cash flows. During the years ended June 30, 2016, 2015, and 2014, the Company recognized $1.2 million, $3.5 million, and $4.7 million of excess tax benefits, respectively, which have been reported as operating cash inflows in the accompanying consolidated statements of cash flows.

Equity Grants and Valuation

Under the terms of its 2006 Stock Incentive Plan (the 2006 Plan), the Company may issue, among others, non-qualified stock options, restricted stock, RSUs, SSARs, and performance awards, collectively referred to herein as equity instruments. During the periods presented, all equity instrument grants were made in the form of RSUs. Annual grants under the 2006 Plan are generally made to the Company’s key employees during the first quarter of the Company’s fiscal year and to members of the Company’s Board of Directors during the second quarter of the Company’s fiscal year. With the approval of its Chief Executive Officer, the Company also issues equity instruments to strategic new hires and to employees who have demonstrated superior performance.

In September 2013, the Company made its annual grant to key employees consisting of 202,170 Performance-based Restricted Stock Units (PRSUs). The final number of such PRSUs that will be considered earned by participants and vest is based on the achievement of a specified net after tax profit (NATP) for the year ended June 30, 2014 and on the average share price of Company stock for the 90 day period ending September 13, 2014 as compared to the average share price for the 90 day period ended September 13, 2013. No PRSUs will be earned if the specified NATP for the fiscal year ending June 30, 2014 is not met. If NATP for the year ending June 30, 2014 exceeds the specified NATP and the average share price of the Company’s stock for the 90 day period ending September 13, 2014 exceeds the average share price of the Company’s stock for the 90 day period ended September 13, 2013 by 100 percent or more, then an additional 202,170 RSUs could be earned by participants. This is the maximum number of additional PRSUs that can be earned related to the September 2013 annual grant. The specified NATP for the year ended June 30, 2014 was met. In addition to the performance and market conditions, there is a service vesting condition which stipulates that 50 percent of the earned award will vest on September 1, 2016 and 50 percent of the earned award will vest on September 1, 2017, in both cases dependent upon continuing service by the grantee as an employee of the Company, unless the grantee is eligible for earlier vesting upon retirement, as defined.

In September 2014, the Company made its annual grant to key employees consisting of 180,570 PRSUs. The final number of such PRSUs that are earned by participants and vest is based on the achievement of a specified earnings per share (EPS) for the year ended June 30, 2015 and on the average share price of Company stock for the 90 day period ending September 23, 2015, 2016 and 2017 as compared to the average share price for the 90 day period ended September 23, 2014. The specified EPS for the year ended June 30, 2015 was met and the average share price of the Company’s stock for the 90 day period ending September 23, 2015 exceeded the average share price of the Company’s stock for the 90 day period ended September 23, 2014 resulting in an additional 7,884 RSUs earned by participants.

In September 2015, the Company made its annual grant to its key employees consisting of 208,160 PRSUs. The final number of such performance-based RSUs which will be considered earned by the participants and eventually vest is based on the achievement of a specified earnings per share (EPS) for the year ending June 30, 2016 and on the average share price of Company stock for the 90 day periods ending September 18, 2016, 2017 and 2018 as compared to the average share price for the 90 day period ended September 18, 2015. PRSUs were earned since the specified EPS for the fiscal year ending June 30, 2016 was met. If EPS for the year ending June 30, 2016 exceeds the specified EPS and the average share price of the Company’s stock for the 90 day periods ending September 18, 2016, 2017 and 2018 exceeds the average share price of the Company’s stock for the 90 day period ended September 18, 2015 by 100 percent or more, then an additional 208,160 RSUs could be earned by participants. This is the maximum number of additional RSUs that can be earned related to the September 2015 annual grant. In addition to the performance and market conditions, there is a service vesting condition which stipulates that 50 percent of the earned award will vest on September 18, 2018 and 50 percent of the earned award will vest on September 18, 2019, in both cases dependent upon continuing service by the grantee as an employee of the Company, unless the grantee is eligible for earlier vesting upon retirement or certain other events.

The Company also issues equity instruments in the form of RSUs under its Management Stock Purchase Plan (MSPP) and Director Stock Purchase Plan (DSPP). In addition, annual grants are made to members of the Company’s Board of Directors in the form of a set dollar value of RSUs. Grants to members of the Board of Directors vest based on the passage of time and continued service as a Director of the Company.

Upon the exercise of stock options and SSARs and the vesting of restricted shares and RSUs, the Company fulfills its obligations under the equity instrument agreements by either issuing new shares of authorized common stock or by issuing shares from treasury. The total number of shares authorized by shareholders for grants under the 2006 Plan and its predecessor plan was 12,450,000 as of June 30, 2016. The aggregate number of grants that may be made may exceed this approved amount as forfeited SSARs, stock options, restricted stock and RSUs, and vested but unexercised SSARs and stock options that expire, become available for future grants. As of June 30, 2016, cumulative grants of 13,763,280 equity instruments underlying the shares authorized have been awarded, and 4,213,316 of these instruments have been forfeited.

Equity instruments granted on or after January 1, 2004 have a term of seven years. For SSAR and stock option awards, grantees whose employment has terminated have 60 days after their termination date to exercise vested SSARs and stock options, or they forfeit their right to the instruments. Grantees whose employment is terminated due to death or permanent disability will vest in 100 percent of their equity instrument grants. Also, effective for grants made on or after July 1, 2004, grantees who were age 62 on or before July 1, 2008 who retire on or after age 65 will vest in 100 percent of their equity instrument grants upon retirement, with the exception of performance-based RSUs, which must be held at least until the measurement period is complete. Grantees who were not age 62 on or before July 1, 2008, who retire on or after age 62, vest in a prorated portion of their equity instrument grants upon retirement, based upon their service during the vesting period.

Stock options vest ratably over a three, four, or five year period, depending on the year of grant. Restricted shares and most non-performance-based RSUs vest in full three years from the date of grant. RSUs granted to the Company’s Chief Executive Officer in February 2013 and to the Company’s Chief Operating Officer in February 2012 have longer vesting periods. SSARs granted in prior years as part of the Company’s then customary annual award vest ratably over a five year period in a manner consistent with the vesting of stock options. As of June 30, 2016 all stock options and SSARs are fully vested and exercised.

We account for share-based payments to employees, including grants of employee stock awards and purchases under employee stock purchase plans, in accordance with ASC 718, Compensation—Stock Compensation, which requires that share-based payments (to the extent they are compensatory) be recognized in our consolidated statements of operations based on their fair values. We determine the fair value of our market-based and performance-based RSUs at the date of grant using generally accepted valuation techniques and the closing market price of our stock. The fair value was determined using a Monte Carlo simulation model incorporating the following factors: 90 day average stock price at the grant date of $80.71 a share, risk free rate of return of 0.97 percent, and expected volatility of 19.17 percent. Stock-based compensation cost is recognized as expense on an accelerated basis over the requisite service period for performance based award. Stock-based compensation cost is recognized ratably over the requisite service period for non-performance based awards. The weighted-average fair value of RSUs granted during the years ended June 30, 2016, 2015, and 2014, was $80.72, $76.37, and $72.17, respectively.

No stock options or SSARs were granted during the years ended June 30, 2016, 2015 or 2014. Activity for all outstanding SSARs and stock options, and the corresponding exercise price and fair value information, for the years ended June 30, 2016, 2015, and 2014, is as follows:

	Number of Shares			Exercise Price		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Outstanding, June 30, 2013		275,550		$37.67 – 59.30		$	48.62		17.54
Exercisable, June 30, 2013		243,170		37.67 – 59.30			48.58		17.60
Exercised		(180,370	)	45.77 – 49.36			48.53		17.81
Forfeited		(1,150	)		49.36		49.36		17.12
Expired		(2,080	)		49.36		49.36		17.12
Outstanding, June 30, 2014		91,950		37.67 – 59.30			48.77		17.02
Exercisable, June 30, 2014		91,950		37.67 – 59.30			48.77		17.02
Exercised		(44,290	)	37.67 – 59.30			49.36		17.33
Forfeited		—			—		—		—
Expired		(5,000	)		47.59		47.59		10.68
Outstanding, June 30, 2015		42,660		37.67 – 49.36			48.29		17.45
Exercisable, June 30, 2015		42,660		37.67 – 49.36			48.29	$	17.45
Exercised		(35,860	)	37.67 – 49.36			48.18		17.25
Forfeited		—			—		—		—
Expired		(6,800	)		48.83		48.83		18.50
Outstanding, June 30, 2016		—			—		—		—
Exercisable, June 30, 2016		—			—	$	—	$	—

Changes in the number of unvested SSARs and stock options and in unvested restricted stock and RSUs during each of the years in the three-year period ended June 30, 2016, 2015, and 2014, together with the corresponding weighted-average fair values, are as follows:

	SSARs and Stock Options					Restricted Stock and Restricted Stock Units
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Unvested at June 30, 2013		32,380		$	17.02		1,042,746		$	47.74
Granted		—			—		254,356			72.17
Vested		(31,230	)		17.02		(360,857	)		45.07
Forfeited		(1,150	)		17.12		(98,003	)		54.94
Unvested at June 30, 2014		—			—		838,242			55.39
Granted		—			—		322,121			76.37
Vested		—			—		(250,613	)		47.84
Forfeited		—			—		(45,184	)		66.89
Unvested at June 30, 2015		—			—		864,566			64.79
Granted		—			—		275,117			80.72
Vested		—			—		(209,448	)		49.48
Forfeited		—			—		(56,381	)		75.79
Unvested at June 30, 2016		—		$	—		873,854		$	71.20

Information regarding the cash proceeds received, and the intrinsic value and total tax benefits realized resulting from SSARs and stock option exercises is as follows (in thousands):

	Year ended June 30,
	2016		2015		2014
Cash proceeds received	$	—	$	872	$	—
Intrinsic value realized	$	1,286	$	1,646	$	3,868
Income tax benefit realized	$	465	$	615	$	1,470

The total intrinsic value of RSUs that vested during the years ended June 30, 2016, 2015, and 2014 was $18.4 million, $18.6 million and $23.1 million, respectively, and the tax benefit realized was $3.3 million, $7.0 million and $8.8 million, respectively.

No stock options vested during the years ended June 30, 2016 and June 30, 2015. The grant date fair value of stock options that vested during period ended June 30, 2014 was $0.5 million.

As of June 30, 2016, there was no unrecognized compensation cost related to SSARs and stock options and $32.2 million of unrecognized compensation cost related to restricted stock and RSUs scheduled to be recognized over a weighted-average period of 2.4 years.

Stock Purchase Plans

The Company adopted the 2002 Employee Stock Purchase Plan (ESPP), MSPP and DSPP in November 2002, and implemented these plans beginning July 1, 2003. There are 1,250,000, 500,000, and 75,000 shares authorized for grants under the ESPP, MSPP and DSPP, respectively.

The ESPP allows eligible full-time employees to purchase shares of common stock at 95 percent of the fair market value of a share of common stock on the last day of the quarter. The maximum number of shares that an eligible employee can purchase during any quarter is equal to two times an amount determined as follows: 20 percent of such employee’s compensation over the quarter, divided by 95 percent of the fair market value of a share of common stock on the last day of the quarter. The ESPP is a qualified plan under Section 423 of the Internal Revenue Code and, for financial reporting purposes, was amended effective July 1, 2005 so as to be considered non-compensatory. Accordingly, there is no stock-based compensation expense associated with shares acquired under the ESPP. As of June 30, 2016, participants have purchased 1,071,706 shares under the ESPP, at a weighted-average price per share of $49.75. Of these shares, 36,773 were purchased by employees at a weighted-average price per share of $82.60 during the year ended June 30, 2016. During the year ended June 30, 2013, the Company established a 10b5-1 plan to facilitate the open market purchase of shares of Company stock to satisfy its obligations under the ESPP.

The MSPP provides those senior executives with stock holding requirements a mechanism to receive RSUs in lieu of up to 100 percent of their annual bonus. For the fiscal years ended June 30, 2016, 2015, and 2014, RSUs awarded in lieu of bonuses earned are granted at 85 percent of the closing price of a share of the Company’s common stock on the date of the award, as reported by the New York Stock Exchange. RSUs granted under the MSPP vest at the earlier of 1) three years from the grant date, 2) upon a change of control of the Company, 3) upon a participant’s retirement at or after age 65, or 4) upon a participant’s death or permanent disability. Vested RSUs are settled in shares of common stock. The Company recognizes the value of the discount applied to RSUs granted under the MSPP as stock compensation expense ratably over the three-year vesting period.

The DSPP allows directors to elect to receive RSUs at the market price of the Company’s common stock on the date of the award in lieu of up to 100 percent of their annual retainer fees. Vested RSUs are settled in shares of common stock. There were no DSPP awards outstanding during the year ended June 30, 2016.

Activity related to the MSPP during the year ended June 30, 2016 is as follows:

	MSPP
RSUs outstanding, June 30, 2015		5,905
Granted		703
Issued		(5,215	)
Forfeited		—
RSUs outstanding, June 30, 2016		1,393
Weighted average grant date fair value as adjusted for the applicable discount	$	73.72

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

FAIR VALUE OF FINANCIAL INSTRUMENTS

FAIR VALUE OF FINANCIAL INSTRUMENTS

12 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

NOTE 22. FAIR VALUE OF FINANCIAL INSTRUMENTS

ASC 820, Fair Value Measurements and Disclosures, defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Fair value is the price that would be received to sell an asset or paid to transfer a liability between market participants in an orderly transaction. The market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity for the asset or liability is known as the principal market. When no principal market exists, the most advantageous market is used. This is the market in which the reporting entity would sell the asset or transfer the liability with the price that maximizes the amount that would be received or minimizes the amount that would be paid. Fair value is based on assumptions market participants would make in pricing the asset or liability. Generally, fair value is based on observable quoted market prices or derived from observable market data when such market prices or data are available. When such prices or inputs are not available, the reporting entity should use valuation models.

The Company’s financial assets and liabilities recorded at fair value on a recurring basis are categorized based on the priority of the inputs used to measure fair value. The inputs used in measuring fair value are categorized into three levels, as follows:

·

Level 1 Inputs – unadjusted quoted prices in active markets for identical assets or liabilities.

·

Level 2 Inputs – unadjusted quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, inputs other than quoted prices that are observable, and inputs derived from or corroborated by observable market data.

·

Level 3 Inputs – amounts derived from valuation models in which unobservable inputs reflect the reporting entity’s own assumptions about the assumptions of market participants that would be used in pricing the asset or liability.

The Company’s financial instruments measured at fair value included interest rate swap agreements and contingent consideration in connection with business combinations. The following table summarizes the financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2016 and June 30, 2015, and the level they fall within the fair value hierarchy (in thousands):

			As of June 30,
	Financial Statement	Fair Value	2016		2015
Description of Financial Instrument	Classification	Hierarchy	Fair Value
Contingent consideration	Other long-term liabilities	Level 3	$	15,171	$	—
Interest rate swap agreements	Other long-term liabilities	Level 2	$	21,609	$	11,728

During the years ended June 30, 2012, 2014, 2015 and 2016, the Company entered into interest rate swap agreements to manage its interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves. To comply with the provisions of ASC 820, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. Changes in the fair value of the interest rate swap agreements are recorded as a component of accumulated other comprehensive income or loss.

Various acquisitions completed during the year ended June 30, 2016 (see Note 4) contained provisions requiring that the Company pay contingent consideration in the event the acquired businesses achieved certain specified earnings results during the two and three year periods subsequent to each acquisition. The Company determined the fair value of the contingent consideration as of each acquisition date using a valuation model which included the evaluation of the most likely outcome and the application of an appropriate discount rate. At the end of each reporting period, the fair value of the contingent consideration was remeasured and any changes were recorded in indirect costs and selling expenses. During the year ended June 30, 2016, this remeasurement resulted in a $0.7 million change to the liability recorded.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

QUARTERLY FINANCIAL DATA (UNAUDITED)

EARNINGS PER SHARE

12 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

EARNINGS PER SHARE

NOTE 23. EARNINGS PER SHARE

Earnings per share and the weighted-average number of diluted shares are computed as follows (in thousands, except per share data):

	Year ended June 30,
	2016		2015		2014
Net income attributable to CACI	$	142,799	$	126,195	$	135,316
Weighted-average number of basic shares outstanding during the period		24,262		23,948		23,429
Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method		540		384		441
Dilutive effect of the Convertible Notes		—		—		1,046
Dilutive effect of the Warrants		—		56		239
Weighted-average number of diluted shares outstanding during the period		24,802		24,388		25,155
Basic earnings per share	$	5.89	$	5.27	$	5.78
Diluted earnings per share	$	5.76	$	5.17	$	5.38

There were no anti-dilutive common stock equivalents for the years ended June 30, 2016, 2015, and 2014 because the Company’s average stock price exceeded the exercise price of all shares outstanding. The calculation of diluted earnings per share for the year ended June 30, 2016 includes the shares underlying the performance-based RSUs granted in September 2015, September 2014 and September 2013. On May 1, 2014 the Company issued 1.4 million shares of common stock in accordance with the Convertible Notes and received 1.4 million shares of our common stock pursuant to the terms of the call option hedge transaction. The contingently issuable shares that may have resulted from the conversion of the Convertible Notes were included in the Company’s diluted share count for the fiscal year ended June 30, 2014 because the Company’s average stock price during the first, second, and third quarters of the year ended June 30, 2014 was above the conversion price of $54.65 per share. During the year ended June 30, 2015 the Company issued 0.5 million shares of common stock in accordance with the Warrants. Pursuant to the terms of the Warrant transaction, the Warrants settled daily over 90 trading days which began in August 2014 and end in December 2014. The contingently issuable shares that may have resulted from the maturity of the Warrants were included in the computation of diluted earnings per share because the Company’s average stock price during the first and second quarters of the year ended June 30, 2015 and second, third, and fourth quarters of the year ended June 30, 2014 was greater than the Warrants’ exercise price of $68.31.

QUARTERLY FINANCIAL DATA (UNAUDITED)

12 Months Ended

Jun. 30, 2016

Quarterly Financial Data [Abstract]

NOTE 24. QUARTERLY FINANCIAL DATA (UNAUDITED)

This data is unaudited, but in the opinion of management, includes and reflects all adjustments that are normal and recurring in nature, and necessary, for a fair presentation of the selected data for these interim periods. Quarterly condensed financial operating results of the Company for the years ended June 30, 2016 and 2015, are presented below (in thousands except per share data).

	Year ended June 30, 2016
	First		Second		Third (2)		Fourth
Revenue	$	822,442	$	830,437	$	977,274	$	1,113,900
Income from operations	$	64,508	$	55,482	$	63,676	$	81,084
Net income attributable to CACI (1)	$	34,632	$	30,452	$	34,116	$	43,599
Basic earnings per share (1)	$	1.43	$	1.26	$	1.41	$	1.79
Diluted earnings per share (1)	$	1.40	$	1.23	$	1.38	$	1.75
Weighted-average shares outstanding:
Basic		24,208		24,246		24,277		24,319
Diluted (1)		24,721		24,786		24,801		24,900

	Year ended June 30, 2015
	First		Second		Third		Fourth
Revenue	$	814,726	$	815,423	$	817,797	$	865,506
Income from operations	$	60,059	$	47,528	$	53,715	$	75,079
Net income attributable to CACI	$	31,130	$	24,642	$	29,039	$	41,384
Basic earnings per share	$	1.32	$	1.03	$	1.20	$	1.71
Diluted earnings per share	$	1.29	$	1.01	$	1.18	$	1.68
Weighted-average shares outstanding:
Basic		23,565		23,890		24,165		24,180
Diluted		24,104		24,314		24,527		24,613

⁽¹⁾	Quarterly FY2016 balances have been adjusted to reflect the adoption of ASU 2016-09 as of the beginning of the fiscal year. See Note 3 for additional information.

⁽²⁾	Acquisition of NSS on February 1, 2016.

VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Jun. 30, 2016

Valuation And Qualifying Accounts [Abstract]

VALUATION AND QUALIFYING ACCOUNTS

CACI INTERNATIONAL INC

VALUATION AND QUALIFYING ACCOUNTS

FOR YEARS ENDED JUNE 30, 2016, 2015 AND 2014

(in thousands)

	Balance at Beginning of Period		Additions at Cost		Deductions			Other Changes			Balance at End of Period
2016
Reserves deducted from assets to which they apply:
Allowances for doubtful accounts	$	3,282	$	536	$	(497	)	$	(324	)	$	2,997
2015
Reserves deducted from assets to which they apply:
Allowances for doubtful accounts	$	3,734	$	800	$	(1,055	)	$	(197	)	$	3,282
2014
Reserves deducted from assets to which they apply:
Allowances for doubtful accounts	$	3,203	$	798	$	(521	)	$	254		$	3,734

Items included as “Other Changes” primarily includes foreign currency exchange differences.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Jun. 30, 2016
Summary Of Significant Accounting Policies [Abstract]
Revenue Recognition	Revenue Recognition Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the fee is fixed or determinable, and collectability is reasonably assured. The Company generates almost all of its revenue from three different types of contractual arrangements: cost-plus-fee, time and material (T&M), and fixed price contracts. Revenue on cost-plus-fee contracts is recognized to the extent of costs incurred plus an estimate of the applicable fees earned. The Company considers fixed fees under cost-plus-fee contracts to be earned in proportion to the allowable costs incurred in performance of the contract. For cost-plus-fee contracts that include performance based fee incentives, and that are subject to the provisions of Accounting Standards Codification (ASC) 605-35, Revenue Recognition – Construction-Type and Production-Type Contracts (ASC 605-35), the Company recognizes the relevant portion of the expected fee to be awarded by the customer at the time such fee can be reasonably estimated, based on factors such as the Company’s prior award experience and communications with the customer regarding performance. For such cost-plus-fee contracts subject to the provisions of ASC 605-10-S99, Revenue Recognition – SEC Materials (ASC 605-10-S99), the Company recognizes the relevant portion of the fee upon customer approval. Revenue on T&M contracts is recognized to the extent of billable rates times hours delivered for services provided, to the extent of material cost for products delivered to customers, and to the extent of expenses incurred on behalf of the customers. Shipping and handling fees charged to the customers are recognized as revenue at the time products are delivered to the customers. The Company has several categories of fixed price contracts: fixed unit price, fixed price-level of effort, and fixed price-completion. Revenue on fixed unit price contracts, where specified units of output under service arrangements are delivered, is recognized as units are delivered based on the specified price per unit. Revenue on fixed unit price maintenance contracts is recognized ratably over the length of the service period. Revenue for fixed price-level of effort contracts is recognized based upon the number of units of labor actually delivered multiplied by the agreed rate for each unit of labor. The Company’s fixed price-completion contracts which involve the design and development of complex customer systems are within the scope of ASC 605-35. Revenue is recognized on the percentage-of-completion method using costs incurred in relation to total estimated costs. For fixed price-completion contracts that are not within the scope of ASC 605-35, revenue is generally recognized over the period when services are provided. Contract accounting requires judgment relative to assessing risks, estimating contract revenue and costs, and making assumptions for schedule and technical issues. Due to the size and nature of many of the Company’s contracts, the estimation of total revenue and cost at completion is complicated and subject to many variables. Contract costs include material, labor, subcontracting costs, and other direct costs, as well as an allocation of allowable indirect costs. Assumptions have to be made regarding the length of time to complete the contract because costs also include expected increases in wages and prices for materials. For contract change orders, claims or similar items, the Company applies judgment in estimating the amounts and assessing the potential for realization. These amounts are only included in contract value when they can be reliably estimated and realization is considered probable. Incentives or penalties related to performance on contracts are considered in estimating sales and profit rates, and are recorded when there is sufficient information for the Company to assess anticipated performance. Estimates of award fees for certain contracts are also a factor in estimating revenue and profit rates based on actual and anticipated awards. From time to time, the Company may proceed with work based on customer direction prior to the completion and signing of formal contract documents. The Company has a formal review process for approving any such work. Revenue associated with such work is recognized only when it can be reliably estimated and realization is probable. The Company bases its estimates on previous experiences with the customer, communications with the customer regarding funding status, and its knowledge of available funding for the contract or program. The Company’s U.S. government contracts comprise 93.5 and 93.7 percent of total revenue in the year ended June 30, 2016 and 2015, respectively and are subject to subsequent government audit of direct and indirect costs. Incurred cost audits have been completed through June 30, 2009. Management does not anticipate any material adjustment to the consolidated financial statements in subsequent periods for audits not yet started or completed.
Costs of Revenue	Costs of Revenue Costs of revenue include all direct contract costs including subcontractor costs, as well as indirect overhead costs and selling, general and administrative expenses that are allowable and allocable to contracts under federal procurement standards. Costs of revenue also include costs and expenses that are unallowable under applicable procurement standards, and are not allocable to contracts for billing purposes. Such costs and expenses do not directly generate revenue, but are necessary for business operations.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all investments with an original maturity of three months or fewer on their trade date to be cash equivalents. The Company classifies investments with an original maturity of more than three months but fewer than twelve months on their trade date as short-term marketable securities.
Inventories	Inventories Inventories are stated at the lower of cost or market using the specific identification cost method, and are recorded within prepaid expenses and other current assets on the accompanying consolidated balance sheets.
Accounting for Business Combinations and Goodwill	Accounting for Business Combinations and Goodwill The purchase price of an acquired business is allocated to the tangible assets and separately identifiable intangible assets acquired less liabilities assumed based upon their respective fair values, with the excess recorded as goodwill. The Company evaluates goodwill at least annually for impairment, or whenever events or circumstances indicate that the carrying value may not be recoverable. The evaluation includes comparing the fair value of the relevant reporting unit to the carrying value, including goodwill, of such unit. The level at which the Company tests goodwill for impairment requires management to determine whether the operations below the operating segments constitute a self-sustaining business for which discrete financial information is available and segment management regularly reviews the operating results. If the fair value exceeds the carrying value, no impairment loss is recognized. However, if the carrying value of the reporting unit exceeds its fair value, the goodwill of the reporting unit may be impaired. Impairment is measured by comparing the implied fair value of the goodwill to its carrying value. Separately identifiable intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed for impairment if impairment indicators are present. As part of the annual assessment, the Company estimates the fair value of its reporting units using both an income approach and a market approach. The valuation process considers management’s estimates of the future operating performance of each reporting unit. Companies in similar industries are researched and analyzed and management considers the domestic and international economic and financial market conditions, both in general and specific to the industry in which the Company operates, prevailing as of the valuation date. The income approach utilizes discounted cash flows. The Company calculates a weighted average cost of capital for each reporting unit in order to estimate the discounted cash flows. The Company evaluates goodwill as of the first day of the fourth quarter. In addition, the Company will perform interim impairment testing should circumstances requiring it arise. The Company completed its annual goodwill assessment as of April 1, 2016 and no impairment charge was necessary as a result of this assessment.
Long-Lived Assets (Excluding Goodwill)	Long-Lived Assets (Excluding Goodwill) Long-lived assets such as property and equipment and intangible assets subject to amortization are reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. An impairment loss would be recognized if the sum of the long-term undiscounted cash flows is less than the carrying amount of the long-lived asset being evaluated. Any write-downs are treated as permanent reductions in the carrying amount of the assets. Property and equipment is recorded at cost. Depreciation of equipment and furniture has been provided over the estimated useful life of the respective assets (ranging from three to eight years) using the straight-line method. Leasehold improvements are generally amortized using the straight-line method over the remaining lease term or the useful life of the improvements, whichever is shorter. Repairs and maintenance costs are expensed as incurred. Separately identifiable definite-lived intangible assets are amortized over their respective estimated useful lives.
External Software Development Costs	External Software Development Costs Costs incurred in creating a software product to be sold or licensed for external use are charged to expense when incurred as indirect costs and selling expenses until technological feasibility has been established for the software. Technological feasibility is established upon completion of a detailed program design or, in its absence, completion of a working software version. Thereafter, all such software development costs are capitalized and subsequently reported at the lower of unamortized cost or estimated net realizable value. Capitalized costs are amortized on a straight-line basis over the remaining estimated economic life of the product.
Supplemental Retirement Savings Plan	Supplemental Retirement Savings Plan The Company maintains the CACI International Inc Group Executive Retirement Plan (the Supplemental Savings Plan) and maintains the underlying assets in a Rabbi Trust. The Supplemental Savings Plan is a non-qualified defined contribution supplemental retirement savings plan for certain key employees whereby participants may elect to defer and contribute a portion of their compensation, as permitted by the plan. Each participant directs his or her investments in the Supplemental Savings Plan (see Note 20). A Rabbi Trust is a grantor trust established to fund compensation for a select group of management. The assets of this trust are available to satisfy the claims of general creditors in the event of bankruptcy of the Company. The assets held by the Rabbi Trust are invested in corporate owned life insurance (COLI) products. The COLI products are recorded at cash surrender value in the consolidated financial statements as supplemental retirement savings plan assets. The amounts due to participants are based on contributions, participant investment elections, and other participant activity and are recorded as supplemental retirement savings plan obligations.
Income Taxes	Income Taxes Income taxes are accounted for using the asset and liability method whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statement carrying amounts of assets and liabilities, and their respective tax bases, and operating loss and tax credit carry forwards. The Company accounts for tax contingencies in accordance with updates made to ASC 740-10-25, Income Taxes – Recognition. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities due to a change in tax rates is recognized in income in the period that includes the enactment date. Estimates of the realizability of deferred tax assets are based on the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies. Any interest or penalties incurred in connection with income taxes are recorded as part of income tax expense for financial reporting purposes.
Costs of Acquisitions	Costs of Acquisitions Costs associated with legal, financial and other professional advisors related to acquisitions, whether successful or unsuccessful, are expensed as incurred.
Foreign Currency Translation	Foreign Currency Translation The assets and liabilities of the Company’s foreign subsidiaries whose functional currency is other than the U.S. dollar are translated at the exchange rate in effect on the reporting date, and income and expenses are translated at the weighted-average exchange rate during the period. The Company’s primary practice is to negotiate contracts in the same currency in which the predominant expenses are incurred, thereby mitigating the exposure to foreign currency fluctuations. The net translation gains and losses are not included in determining net income, but are accumulated as a separate component of shareholders’ equity. Foreign currency transaction gains and losses are included in determining net income, but are insignificant. These costs are included as indirect costs and selling expenses in the accompanying consolidated statements of operations.
Earnings Per Share	Earnings Per Share Basic earnings per share excludes dilution and is computed by dividing income by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock but not securities that are anti-dilutive, including stock options and stock settled stock appreciation rights (SSARs) with an exercise price greater than the average market price of the Company’s common stock. Using the treasury stock method, diluted earnings per share includes the incremental effect of SSARs, stock options, restricted shares, and those restricted stock unit (RSUs) that are no longer subject to a market or performance condition. Information about the weighted-average number of basic and diluted shares is presented in Note 23.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and amounts included in other current assets and current liabilities that meet the definition of a financial instrument approximate fair value because of the short-term nature of these amounts. The fair value of the Company’s debt under its bank credit facility approximates its carrying value at June 30, 2016. The fair value of the Company’s debt under its bank credit facility was estimated using Level 2 inputs based on market data on companies with a corporate rating similar to CACI’s that have recently priced credit facilities.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that potentially subject the Company to credit risk include accounts receivable and cash equivalents. Management believes that credit risk related to the Company’s accounts receivable is limited due to a large number of customers in differing segments and agencies of the U.S. government. Accounts receivable credit risk is also limited due to the credit worthiness of the U.S. government. Management believes the credit risk associated with the Company’s cash equivalents is limited due to the credit worthiness of the obligors of the investments underlying the cash equivalents. In addition, although the Company maintains cash balances at financial institutions that exceed federally insured limits, these balances are placed with high quality financial institutions.
Comprehensive Income	Comprehensive Income (Loss) Comprehensive income is the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Other comprehensive income (loss) refers to revenue, expenses, and gains and losses that under U.S. GAAP are included in comprehensive income, but excluded from the determination of net income. The elements within other comprehensive income consist of foreign currency translation adjustments; the changes in the fair value of interest rate swap agreements, net of tax of $3.9 million for the year ended June 30, 2016; and differences between actual amounts and estimates based on actuarial assumptions and the effect of changes in actuarial assumptions made under the Company’s post-retirement benefit plans, net of tax (see Note 15). As of June 30, 2016 and 2015, accumulated other comprehensive loss included a loss of $26.7 million and $6.7 million, respectively, related to foreign currency translation adjustments, a loss of $13.1 million and $7.1 million, respectively, related to the fair value of its interest rate swap agreements, and a loss of $1.3 million and $1.2 million, respectively, related to unrecognized post-retirement costs.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. Management estimates include estimated costs to complete and estimated award fees for contracts accounted for under ASC 605-35, amortization periods for long-lived intangible assets, recoverability of long-lived assets, reserves for accounts receivable, and reserves for contract related matters. Actual results could differ from these estimates.
Commitments and Contingencies	Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated.

ACQUISITIONS (Tables)

12 Months Ended

Jun. 30, 2016

L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS")

Schedule of assets acquired and liabilities assumed

Cash	$	2,596
Accounts receivable		209,833
Prepaid expenses and other current assets		12,075
Property and equipment		21,320
Intangible assets, other than goodwill		110,500
Goodwill		367,722
Other assets		437
Accounts payable		(57,616	)
Accrued compensation and benefits		(38,953	)
Accrued expenses and other current liabilities		(37,496	)
Deferred income taxes		(37,796	)
Other long-term liabilities		(5,280	)
Total consideration	$	547,342

Schedule of unaudited pro forma results of operations

	(Unaudited)
	Year ended June 30,
	2016			2015
Revenue	$	4,418,997		$	4,401,345
Net loss		(300,363	)		(15,480	)
Basic loss per share		(12.38	)		(0.65	)
Diluted loss per share		(12.38	)		(0.65	)

Six3 Systems Holdings II Inc

Schedule of unaudited pro forma results of operations

	(Unaudited)
	Year ended June 30,
	2014
Revenue	$	3,742,394
Net income		150,881
Basic earnings per share		6.44
Diluted earnings per share		6.00

CASH AND CASH EQUIVALENTS (Tables)

12 Months Ended

Jun. 30, 2016

Cash And Cash Equivalents [Abstract]

Schedule of cash and cash equivalents

	June 30,
	2016		2015
Cash	$	45,117	$	31,768
Money market funds		3,965		3,596
Total cash and cash equivalents	$	49,082	$	35,364

ACCOUNTS RECEIVABLE (Tables)

12 Months Ended

Jun. 30, 2016

Accounts Receivable [Abstract]

Schedule of total accounts receivable

	June 30,
	2016		2015
Billed receivables	$	599,206	$	444,869
Billable receivables at end of period		172,585		102,796
Unbilled receivables pending receipt of contractual documents authorizing billing		32,026		48,490
Total accounts receivable, current		803,817		596,155
Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months		8,330		8,188
Total accounts receivable	$	812,147	$	604,343

GOODWILL (Tables)

12 Months Ended

Jun. 30, 2016

Goodwill [Abstract]

Schedule of changes in the carrying amount of goodwill

	Domestic		International			Total
Balance at June 30, 2014	$	2,099,822	$	88,747		$	2,188,569
Goodwill acquired		8,946		—			8,946
Foreign currency translation		—		(7,699	)	$	(7,699	)
Balance at June 30, 2015	$	2,108,768	$	81,048		$	2,189,816
Goodwill acquired		378,380		29,939			408,319
Foreign currency translation		—		(12,792	)		(12,792	)
Balance at June 30, 2016	$	2,487,148	$	98,195		$	2,585,343

INTANGIBLE ASSETS (Tables)

12 Months Ended

Jun. 30, 2016

Intangible Assets [Abstract]

Schedule of intangible assets

	June 30,
	2016			2015
Intangible assets
Customer contracts and related customer relationships	$	635,826		$	520,213
Acquired technologies		28,074			27,177
Covenants not to compete		3,321			3,417
Other		1,551			1,581
Intangible assets		668,772			552,388
Less accumulated amortization
Customer contracts and related customer relationships		(363,412	)		(328,217	)
Acquired technologies		(25,693	)		(24,728	)
Covenants not to compete		(3,245	)		(3,241	)
Other		(1,050	)		(1,020	)
Accumulated amortization		(393,400	)		(357,206	)
Total intangible assets, net	$	275,372		$	195,182

Schedule of expected amortization expense

	Amount
Year ending June 30, 2017	$	40,631
Year ending June 30, 2018		36,134
Year ending June 30, 2019		31,507
Year ending June 30, 2020		27,045
Year ending June 30, 2021		23,843
Thereafter		116,212
Total intangible assets, net	$	275,372

PROPERTY AND EQUIPMENT (Tables)

12 Months Ended

Jun. 30, 2016

Property And Equipment [Abstract]

Schedule of property and equipment

	June 30,
	2016			2015
Equipment and furniture	$	126,437		$	107,098
Leasehold improvements		92,103			79,508
Property and equipment, at cost		218,540			186,606
Less accumulated depreciation and amortization		(137,178	)		(122,917	)
Total property and equipment, net	$	81,362		$	63,689

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS (Tables)

12 Months Ended

Jun. 30, 2016

Capitalized External Software Development Costs [Abstract]

Schedule of capitalized external software development costs

	Year ended June 30,
	2016			2015			2014
Capitalized software development costs, beginning of year	$	15,255		$	16,594		$	12,742
Costs capitalized		3,407			2,572			7,742
Amortization		(3,230	)		(3,911	)		(3,890	)
Capitalized software development costs, end of year	$	15,432		$	15,255		$	16,594

ACCRUED COMPENSATION AND BENEFITS (Tables)

12 Months Ended

Jun. 30, 2016

Accrued Compensation And Benefits [Abstract]

Schedule of accrued compensation and benefits

	June 30,
	2016		2015
Accrued salaries and withholdings	$	114,990	$	97,513
Accrued leave		85,717		66,162
Accrued fringe benefits		27,655		22,155
Total accrued compensation and benefits	$	228,362	$	185,830

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES (Tables)

12 Months Ended

Jun. 30, 2016

Other Accrued Expenses And Current Liabilities [Abstract]

Schedule of other accrued expenses and current liabilities

	June 30,
	2016		2015
Vendor obligations	$	109,671	$	76,729
Deferred revenue		41,407		25,898
Other		36,501		15,419
Total other accrued expenses and current liabilities	$	187,579	$	118,046

LONG TERM DEBT (Tables)

12 Months Ended

Jun. 30, 2016

Long-Term Debt [Abstract]

Schedule of long-term debt

	June 30,
	2016			2015
Bank credit facility – term loans	$	1,032,833		$	779,297
Bank credit facility – revolver loans		440,000			295,000
Principal amount of long-term debt		1,472,833			1,074,297
Less unamortized debt issuance costs (1)		(16,789	)		(10,733	)
Total long-term debt		1,456,044			1,063,564
Less current portion		(53,965	)		(38,965	)
Long-term debt, net of current portion	$	1,402,079		$	1,024,599

⁽¹⁾	Balance as of June 30, 2015 has been adjusted for the reclassification of debt issuance costs related to the adoption of ASU 2015-03. See Note 3 for additional information.

Schedule of components of interest expense related to the notes

	June 30,
	2016		2015		2014
Coupon interest	$	—	$	—	$	5,313
Non-cash amortization of discount		—		—		11,421
Amortization of issuance costs		—		—		683
Total	$	—	$	—	$	17,417

Schedule of effect of derivative instruments in the condensed consolidated statements of operations and accumulated other comprehensive loss

	Interest Rate Swaps
	2016			2015			2014
(Loss) gain recognized in other comprehensive income	$	(14,859	)	$	(9,422	)	$	(4,999	)
Amounts reclassified to earnings from accumulated other comprehensive loss	$	8,867		$	7,024		$	1,356
Net current period other comprehensive income (loss)	$	(5,992	)	$	(2,398	)	$	(3,643	)

Schedule of aggregate maturities of long-term debt

Year ending June 30,
2017	$	53,965
2018		53,965
2019		107,930
2020		1,256,973
Principal amount of long-term debt		1,472,833
Less unamortized debt issuance costs		(16,789	)
Total long-term debt	$	1,456,044

LEASES (Tables)

12 Months Ended

Jun. 30, 2016

Leases [Abstract]

Schedule of future minimum lease payments due under non-cancelable leases

Year ending June 30:
2017	$	65,668
2018		56,185
2019		52,973
2020		42,303
2021		35,355
Thereafter		99,190
Total minimum lease payments	$	351,674

OTHER LONG-TERM LIABILITIES (Tables)

12 Months Ended

Jun. 30, 2016

Other Long-Term Liabilities [Abstract]

Schedule of components of other long-term liabilities

	June 30,
	2016		2015
Deferred rent, net of current portion	$	32,907	$	28,038
Interest rate swap agreements		21,609		11,728
Deferred acquisition and contingent consideration		18,642		—
Deferred revenue		7,234		7,784
Accrued post-retirement obligations		6,569		6,103
Reserve for unrecognized tax benefits		249		5,880
Other		110		848
Total other long-term liabilities	$	87,320	$	60,381

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Tables)

12 Months Ended

Jun. 30, 2016

Business Segment Information [Abstract]

Summarized financial information of reportable segments

	Domestic Operations		International Operations		Total
	(in thousands)
Year Ended June 30, 2016
Revenue from external customers	$	3,593,924	$	150,129	$	3,744,053
Net income attributable to CACI		129,568		13,231		142,799
Net assets		1,476,924		130,389		1,607,313
Goodwill		2,487,148		98,195		2,585,343
Total long-term assets		2,943,896		121,607		3,065,503
Total assets		3,798,013		189,328		3,987,341
Capital expenditures		18,339		2,496		20,835
Depreciation and amortization		60,637		4,115		64,752

Year Ended June 30, 2015
Revenue from external customers	$	3,168,864	$	144,588	$	3,313,452
Net income attributable to CACI		114,658		11,537		126,195
Net assets		1,343,152		137,120		1,480,272
Goodwill		2,108,767		81,049		2,189,816
Total long-term assets (1)		2,473,470		102,450		2,575,920
Total assets (1)		3,055,782		186,248		3,242,030
Capital expenditures		15,324		2,120		17,444
Depreciation and amortization		61,587		4,496		66,083

Year Ended June 30, 2014
Revenue from external customers	$	3,421,544	$	143,018	$	3,564,562
Net income attributable to CACI		124,599		10,717		135,316
Net assets		1,221,641		137,525		1,359,166
Goodwill		2,099,821		88,748		2,188,569
Total long-term assets (1)		2,503,805		113,297		2,617,102
Total assets (1)		3,141,602		188,655		3,330,257
Capital expenditures		13,737		1,542		15,279
Depreciation and amortization		61,207		3,974		65,181

⁽¹⁾	Adjusted for the reclassification of debt issuance costs and deferred taxes pursuant to the adoption of ASU 2015-03 and ASU 2015-17. See Note 3 to the Consolidated Financial Statements for further information.

Schedule of revenue by customer sector

	Year ended June 30,
	2016		%			2015		%			2014		%
Department of Defense	$	2,439,329		65.1	%	$	2,217,031		66.9	%	$	2,578,024		72.3	%
Federal civilian agencies		1,062,508		28.4			888,191		26.8			771,662		21.7
Commercial and other		227,145		6.1			202,858		6.1			199,521		5.6
State and local governments		15,071		0.4			5,372		0.2			15,355		0.4
Total revenue	$	3,744,053		100.0	%	$	3,313,452		100.0	%	$	3,564,562		100.0	%

INCOME TAXES (Tables)

12 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Schedule of income loss before income tax expense

	Year ended June 30,
	2016		2015		2014
Domestic	$	207,641	$	187,332	$	204,879
Foreign		15,971		14,190		13,763
Income before income taxes	$	223,612	$	201,522	$	218,642

Schedule of components of income tax expense

	Year ended June 30,
	2016			2015			2014
Current:
Federal	$	54,507		$	37,159		$	53,055
State and local		9,401			8,080			11,456
Foreign		3,337			3,066			3,256
Total current		67,245			48,305			67,767
Deferred:
Federal		11,978			23,261			12,580
State and local		2,028			3,964			2,680
Foreign		(438	)		(203	)		299
Total deferred		13,568			27,022			15,559
Total income tax expense	$	80,813		$	75,327		$	83,326

Schedule of effective income tax rate reconciliation

	Year ended June 30,
	2016			2015			2014
Expected tax expense computed at federal rate	$	78,264		$	70,533		$	76,525
State and local taxes, net of federal benefit		7,429			7,828			9,188
Nondeductible items		2,936			2,166			1,150
Effect of foreign tax rates		(2,308	)		(2,135	)		(1,885	)
Other		(5,508	)		(3,065	)		(1,652	)
Total income tax expense	$	80,813		$	75,327		$	83,326

Schedule of deferred tax assets and liabilities

	June 30,
	2016			2015
Deferred tax assets:
Deferred compensation and post-retirement obligations	$	35,724		$	34,963
Reserves and accruals		39,903			25,498
Stock-based compensation		9,833			7,242
Interest rate swap		8,505			4,616
Deferred rent		5,765			4,886
Other		8,353			11,760
Total deferred tax assets		108,083			88,965
Deferred tax liabilities:
Goodwill and other intangible assets		(320,811	)		(258,498	)
Unbilled revenue		(18,740	)		(15,652	)
Prepaid expenses		(8,308	)		(5,452	)
Other		(8,682	)		(9,600	)
Total deferred tax liabilities		(356,541	)		(289,202	)
Net deferred tax liability	$	(248,458	)	$	(200,237	)

Schedule of unrecognized tax benefits

	Year ended June 30,
	2016			2015			2014
Beginning of year	$	6,220		$	9,636		$	8,184
Additions based on current year tax positions		89			1,468			2,023
Reductions based on changes to prior year tax positions		—			(3,522	)		—
Lapse of statute of limitations		(128	)		(1,344	)		(426	)
Settlement with taxing authorities		(5,783	)		(18	)		(145	)
End of year	$	398		$	6,220		$	9,636

STOCK PLANS AND STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Jun. 30, 2016

Stock Plans And Stock-Based Compensation [Abstract]

Summary of stock-based compensation expense recognized

	Year ended June 30,
	2016		2015		2014
Stock-based compensation included in indirect costs and selling expense:
Restricted stock and RSU expense	$	17,919	$	14,072	$	11,516
SSARs and non-qualified stock option expense		—		—		41
Total stock-based compensation expense	$	17,919	$	14,072	$	11,557
Income tax benefit recognized for stock-based compensation expense	$	6,476	$	5,260	$	4,392

Summary of activity for outstanding SSARs and stock options

	Number of Shares			Exercise Price		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Outstanding, June 30, 2013		275,550		$37.67 – 59.30		$	48.62		17.54
Exercisable, June 30, 2013		243,170		37.67 – 59.30			48.58		17.60
Exercised		(180,370	)	45.77 – 49.36			48.53		17.81
Forfeited		(1,150	)		49.36		49.36		17.12
Expired		(2,080	)		49.36		49.36		17.12
Outstanding, June 30, 2014		91,950		37.67 – 59.30			48.77		17.02
Exercisable, June 30, 2014		91,950		37.67 – 59.30			48.77		17.02
Exercised		(44,290	)	37.67 – 59.30			49.36		17.33
Forfeited		—			—		—		—
Expired		(5,000	)		47.59		47.59		10.68
Outstanding, June 30, 2015		42,660		37.67 – 49.36			48.29		17.45
Exercisable, June 30, 2015		42,660		37.67 – 49.36			48.29	$	17.45
Exercised		(35,860	)	37.67 – 49.36			48.18		17.25
Forfeited		—			—		—		—
Expired		(6,800	)		48.83		48.83		18.50
Outstanding, June 30, 2016		—			—		—		—
Exercisable, June 30, 2016		—			—	$	—	$	—

Summary of activity related to SSARs/Non-qualified stock options and RSUs/Restricted shares issued

	SSARs and Stock Options					Restricted Stock and Restricted Stock Units
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Unvested at June 30, 2013		32,380		$	17.02		1,042,746		$	47.74
Granted		—			—		254,356			72.17
Vested		(31,230	)		17.02		(360,857	)		45.07
Forfeited		(1,150	)		17.12		(98,003	)		54.94
Unvested at June 30, 2014		—			—		838,242			55.39
Granted		—			—		322,121			76.37
Vested		—			—		(250,613	)		47.84
Forfeited		—			—		(45,184	)		66.89
Unvested at June 30, 2015		—			—		864,566			64.79
Granted		—			—		275,117			80.72
Vested		—			—		(209,448	)		49.48
Forfeited		—			—		(56,381	)		75.79
Unvested at June 30, 2016		—		$	—		873,854		$	71.20

Summary of information regarding cash proceeds received, intrinsic value and total tax benefits realized resulting from stock options exercises

	Year ended June 30,
	2016		2015		2014
Cash proceeds received	$	—	$	872	$	—
Intrinsic value realized	$	1,286	$	1,646	$	3,868
Income tax benefit realized	$	465	$	615	$	1,470

Summary of activity related to MSPP And DSPP

	MSPP
RSUs outstanding, June 30, 2015		5,905
Granted		703
Issued		(5,215	)
Forfeited		—
RSUs outstanding, June 30, 2016		1,393
Weighted average grant date fair value as adjusted for the applicable discount	$	73.72

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Schedule of financial assets and liabilities measured at fair value on a recurring basis

			As of June 30,
	Financial Statement	Fair Value	2016		2015
Description of Financial Instrument	Classification	Hierarchy	Fair Value
Contingent consideration	Other long-term liabilities	Level 3	$	15,171	$	—
Interest rate swap agreements	Other long-term liabilities	Level 2	$	21,609	$	11,728

EARNINGS PER SHARE (Tables)

12 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of calculation of basic and diluted earnings per share

	Year ended June 30,
	2016		2015		2014
Net income attributable to CACI	$	142,799	$	126,195	$	135,316
Weighted-average number of basic shares outstanding during the period		24,262		23,948		23,429
Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method		540		384		441
Dilutive effect of the Convertible Notes		—		—		1,046
Dilutive effect of the Warrants		—		56		239
Weighted-average number of diluted shares outstanding during the period		24,802		24,388		25,155
Basic earnings per share	$	5.89	$	5.27	$	5.78
Diluted earnings per share	$	5.76	$	5.17	$	5.38

QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)

12 Months Ended

Jun. 30, 2016

Quarterly Financial Data [Abstract]

Schedule of quarterly condensed financial operating results

	Year ended June 30, 2016
	First		Second		Third (2)		Fourth
Revenue	$	822,442	$	830,437	$	977,274	$	1,113,900
Income from operations	$	64,508	$	55,482	$	63,676	$	81,084
Net income attributable to CACI (1)	$	34,632	$	30,452	$	34,116	$	43,599
Basic earnings per share (1)	$	1.43	$	1.26	$	1.41	$	1.79
Diluted earnings per share (1)	$	1.40	$	1.23	$	1.38	$	1.75
Weighted-average shares outstanding:
Basic		24,208		24,246		24,277		24,319
Diluted (1)		24,721		24,786		24,801		24,900

	Year ended June 30, 2015
	First		Second		Third		Fourth
Revenue	$	814,726	$	815,423	$	817,797	$	865,506
Income from operations	$	60,059	$	47,528	$	53,715	$	75,079
Net income attributable to CACI	$	31,130	$	24,642	$	29,039	$	41,384
Basic earnings per share	$	1.32	$	1.03	$	1.20	$	1.71
Diluted earnings per share	$	1.29	$	1.01	$	1.18	$	1.68
Weighted-average shares outstanding:
Basic		23,565		23,890		24,165		24,180
Diluted		24,104		24,314		24,527		24,613

⁽¹⁾	Quarterly FY2016 balances have been adjusted to reflect the adoption of ASU 2016-09 as of the beginning of the fiscal year. See Note 3 for additional information.

⁽²⁾	Acquisition of NSS on February 1, 2016.

ORGANIZATION AND BASIS OF PRESENTATION (Detail Textuals)	12 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable interest entity, ownership percentage	50.00%

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail Textuals) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Summary Of Significant Accounting Policies [Line Items]
U.S. Government Contracts as a percent of total revenue	93.50%	93.70%
Amount of tax expense for changes in the fair value of interest rate swap agreements	$ 3.9
Accumulated other comprehensive loss related to foreign currency translation adjustments	(26.7)	$ (6.7)
Accumulated other comprehensive loss related to fair value of interest rate swaps	(13.1)	(7.1)
Accumulated other comprehensive loss related to unrecognized post-retirement medical plan costs	$ (1.3)	$ (1.2)
Equipment and furniture
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	from three to eight years
Leasehold improvements
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	over the remaining lease term or the useful life of the improvements, whichever is shorter

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS (Detail Textuals) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits recognized	$ 1.2	$ 3.5	$ 4.7
Adjustments for new accounting pronouncement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in net income	$ 1.2
Increase in earnings per share	$ 0.05
Current deferred tax assets reclassified to net non-current deferred tax liabilities		10.4
Debt issuance costs reclassified from other long term assets to long term debt		$ 4.7

ACQUISITIONS - Asset aquired and liability assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Feb. 01, 2016	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Goodwill	$ 2,585,343		$ 2,189,816	$ 2,188,569
L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS")
Business Acquisition [Line Items]
Cash		$ 2,596
Accounts receivable		209,833
Prepaid expenses and other current assets		12,075
Property and equipment		21,320
Intangible assets, other than goodwill		110,500
Goodwill		367,722
Other assets		437
Accounts payable		(57,616)
Accrued compensation and benefits		(38,953)
Accrued expenses and other current liabilities		(37,496)
Deferred income taxes		(37,796)
Other long-term liabilities		(5,280)
Total consideration		$ 547,342

ACQUISITIONS - Unaudited Pro Forma Financial Information (Details 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS")
Business Acquisition [Line Items]
Revenue	$ 4,418,997	$ 4,401,345
Net income (loss)	$ (300,363)	$ (15,480)
Basic earnings (loss) per share (in dollars per share)	$ (12.38)	$ (0.65)
Diluted earnings (loss) per share (in dollars per share)	$ (12.38)	$ (0.65)
Six3 Systems Holdings II Inc
Business Acquisition [Line Items]
Revenue			$ 3,742,394
Net income (loss)			$ 150,881
Basic earnings (loss) per share (in dollars per share)			$ 6.44
Diluted earnings (loss) per share (in dollars per share)			$ 6.00

ACQUISITIONS (Detail Textuals) - USD ($)
$ in Thousands

3 Months Ended

5 Months Ended

12 Months Ended

Feb. 01, 2016

Jun. 30, 2016

Mar. 31, 2016

^[1]

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

$ 2,585,343

$ 2,189,816

$ 2,585,343

$ 2,189,816

$ 2,188,569

1,113,900

$ 977,274

$ 830,437

$ 822,442

865,506

$ 817,797

$ 815,423

$ 814,726

3,744,053

3,313,452

3,564,562

Proceeds from borrowings under bank credit facilities

43,599

^[2]

$ 34,116

^[2]

$ 30,452

^[2]

$ 34,632

^[2]

$ 41,384

$ 29,039

$ 24,642

$ 31,130

142,799

126,195

135,316

1,058,500

438,969

1,577,000

Amortization expense

38,000

39,500

$ 38,600

L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS")

Percentage of outstanding shares acquired

100.00%

Cash consideration

$ 550,000

Consideration, initial net working capital payment

11,200

Consideration, net working capital refund due from sellers

13,900

Measurement period adjustments

$ 18,000

Total consideration

547,342

Amount of tax deductible goodwill and intangibles

367,722

47,700

427,200

Acquisition-related expenses

18,800

7,300

Integration and restructuring costs

3,900

Goodwill impairment expense

$ 476,200

$ 158,700

L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS") | Revolving Credit Facility

Proceeds from borrowings under bank credit facilities

250,000

L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS") | Term loans

L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS") | Customer contracts and related customer relationships

$ 300,000

Amortization period of acquired intangible assets

15 years

Amortization expense

$ 4,200

[1]	Acquisition of NSS on February 1, 2016.
[2]	Quarterly FY2016 balances have been adjusted to reflect the adoption of ASU 2016-09 as of the beginning of the fiscal year. See Note 3 for additional information.

ACQUISITIONS (Detail Textuals 1) - USD ($) $ in Thousands	12 Months Ended
ACQUISITIONS (Detail Textuals 1) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 01, 2016	Dec. 04, 2015	Jul. 02, 2015	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Aggregate goodwill arising from other acquisitions	$ 2,585,343				$ 2,189,816	$ 2,188,569
Rockshore Group Ltd (Rockshore)
Business Acquisition [Line Items]
Percentage of outstanding shares acquired				100.00%
Business in United States
Business Acquisition [Line Items]
Percentage of outstanding shares acquired			100.00%
Purple Secure Systems Limited
Business Acquisition [Line Items]
Percentage of outstanding shares acquired		100.00%
Stream:20 Limited
Business Acquisition [Line Items]
Percentage of outstanding shares acquired		100.00%
Combined Business Acquisitions
Business Acquisition [Line Items]
Combined purchase consideration	55,600
Cash consideration	31,800
Deferred consideration	8,400
Contingent consideration	15,400
Aggregate goodwill arising from other acquisitions	40,600
Aggregate intangible assets arising from other acquisitions	$ 8,200

ACQUISITIONS (Detail Textuals 2) $ in Thousands	12 Months Ended
ACQUISITIONS (Detail Textuals 2) $ in Thousands	Jun. 30, 2015 USD ($) Associate	Jun. 30, 2016 USD ($)	Jun. 30, 2014 USD ($)
Business Acquisition [Line Items]
Goodwill	$ 2,189,816	$ 2,585,343	$ 2,188,569
LTC Engineering Associates, Inc. (LTC)
Business Acquisition [Line Items]
Percentage of outstanding shares acquired	100.00%
Purchase price	$ 16,000
Number of associates \| Associate	50
Goodwill	$ 8,900
Intangible assets	$ 4,800

ACQUISITIONS (Detail Textuals 3) - USD ($)
$ in Thousands

1 Months Ended

3 Months Ended

12 Months Ended

Nov. 15, 2013

Jun. 30, 2016

Mar. 31, 2016

^[2]

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Mar. 31, 2014

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

Proceeds from borrowings under bank credit facilities

$ 1,058,500

$ 438,969

$ 1,577,000

$ 43,599

^[1]

$ 34,116

^[1]

$ 30,452

^[1]

$ 34,632

^[1]

$ 41,384

$ 29,039

$ 24,642

$ 31,130

142,799

126,195

135,316

2,585,343

2,189,816

2,585,343

2,189,816

2,188,569

Amortization of intangible assets

$ 1,113,900

$ 977,274

$ 830,437

$ 822,442

$ 865,506

$ 817,797

$ 815,423

$ 814,726

3,744,053

3,313,452

3,564,562

38,000

39,500

38,600

$ (272)

(4,116)

Term Loan

Revolving Credit Facility

300,000

Proceeds from borrowings under bank credit facilities

$ 250,000

Six3 Systems Holdings II Inc

Percentage of outstanding shares acquired

100.00%

Initial purchase consideration

8,900

$ 820,000

Estimated cash and net working capital adjustment

25,800

Escrow deposit related to net cash and working capital adjustments

5,000

Escrow deposit related to indemnified obligations

35,000

Escrow deposit distributed to seller

$ 5,000

Acquisition-related expenses

268,400

11,700

Six3 Systems Holdings II Inc | Term Loan

4,100

Six3 Systems Holdings II Inc | Revolving Credit Facility

700,000

Proceeds from borrowings under bank credit facilities

$ 100,000

Six3 Systems Holdings II Inc | Retention Agreements With Acquired Entity Executive

Six3 Systems Holdings II Inc | Customer Contracts And Customer Relationships

Retention bonuses

4,200

Amortization of intangible assets

$ 12,900

[1]	Quarterly FY2016 balances have been adjusted to reflect the adoption of ASU 2016-09 as of the beginning of the fiscal year. See Note 3 for additional information.
[2]	Acquisition of NSS on February 1, 2016.

CASH AND CASH EQUIVALENTS - Schedule of cash and cash equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Cash And Cash Equivalents [Abstract]
Cash	$ 45,117	$ 31,768
Money market funds	3,965	3,596
Total cash and cash equivalents	$ 49,082	$ 35,364	$ 64,461	$ 64,337

ACCOUNTS RECEIVABLE - Schedule of accounts receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Accounts Receivable [Abstract]
Billed receivables	$ 599,206	$ 444,869
Billable receivables at end of period	172,585	102,796
Unbilled receivables pending receipt of contractual documents authorizing billing	32,026	48,490
Total accounts receivable, current	803,817	596,155
Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months	8,330	8,188
Total accounts receivable	$ 812,147	$ 604,343

ACCOUNTS RECEIVABLE (Detail Textuals) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Accounts Receivable [Abstract]
Allowance for doubtful accounts receivable	$ 3.0	$ 3.2

GOODWILL (Details) - USD ($) $ in Thousands	12 Months Ended
GOODWILL (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Goodwill [Roll Forward]
Balance	$ 2,189,816	$ 2,188,569
Goodwill acquired	408,319	8,946
Foreign currency translation	(12,792)	(7,699)
Balance	2,585,343	2,189,816
Domestic
Goodwill [Roll Forward]
Balance	2,108,767	2,099,821
Goodwill acquired	378,380	8,946
Foreign currency translation
Balance	2,487,148	2,108,767
International
Goodwill [Roll Forward]
Balance	81,049	88,748
Goodwill acquired	29,939
Foreign currency translation	(12,792)	(7,699)
Balance	$ 98,195	$ 81,049

INTANGIBLE ASSETS - Summary of intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Intangible assets
Intangible assets	$ 668,772	$ 552,388
Less accumulated amortization
Accumulated amortization	(393,400)	(357,206)
Total intangible assets, net	275,372	195,182
Customer contracts and related customer relationships
Intangible assets
Intangible assets	635,826	520,213
Less accumulated amortization
Accumulated amortization	(363,412)	(328,217)
Acquired technologies
Intangible assets
Intangible assets	28,074	27,177
Less accumulated amortization
Accumulated amortization	(25,693)	(24,728)
Covenants not to compete
Intangible assets
Intangible assets	3,321	3,417
Less accumulated amortization
Accumulated amortization	(3,245)	(3,241)
Other
Intangible assets
Intangible assets	1,551	1,581
Less accumulated amortization
Accumulated amortization	$ (1,050)	$ (1,020)

INTANGIBLE ASSETS - Summary of expected amortization expense (Details 1) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Intangible Assets [Abstract]
Year ending June 30, 2017	$ 40,631
Year ending June 30, 2018	36,134
Year ending June 30, 2019	31,507
Year ending June 30, 2020	27,045
Year ending June 30, 2021	23,843
Thereafter	116,212
Total intangible assets, net	$ 275,372	$ 195,182

INTANGIBLE ASSETS (Detail Textuals) - USD ($) $ in Millions	12 Months Ended
INTANGIBLE ASSETS (Detail Textuals) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 38.0	$ 39.5	$ 38.6
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset amortization period	1 year
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset amortization period	15 years
Customer contracts and related customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period	14 years
Weighted-average remaining amortization period	11 years 10 months 24 days
Acquired technologies
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period	10 years
Weighted-average remaining amortization period	5 years 7 months 6 days

PROPERTY AND EQUIPMENT - Schedule of property and equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Property And Equipment [Abstract]
Equipment and furniture	$ 126,437	$ 107,098
Leasehold improvements	92,103	79,508
Property and equipment, at cost	218,540	186,606
Less accumulated depreciation and amortization	(137,178)	(122,917)
Total property and equipment, net	$ 81,362	$ 63,689

PROPERTY AND EQUIPMENT (Detail Textuals) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Property And Equipment [Abstract]
Depreciation expense	$ 23.6	$ 22.7	$ 22.7

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS - Summary of changes in capitalized external software development costs, including costs capitalized and amortized (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Movement in Capitalized Computer Software, Net [Roll Forward]
Capitalized software development costs, beginning of year	$ 15,255	$ 16,594	$ 12,742
Costs capitalized	3,407	2,572	7,742
Amortization	(3,230)	(3,911)	(3,890)
Capitalized software development costs, end of year	$ 15,432	$ 15,255	$ 16,594

ACCRUED COMPENSATION AND BENEFITS (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Accrued Compensation And Benefits [Abstract]
Accrued salaries and withholdings	$ 114,990	$ 97,513
Accrued leave	85,717	66,162
Accrued fringe benefits	27,655	22,155
Total accrued compensation and benefits	$ 228,362	$ 185,830

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES - Schedule Of Other Accrued Expenses And Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Other Accrued Expenses And Current Liabilities [Abstract]
Vendor obligations	$ 109,671	$ 76,729
Deferred revenue	41,407	25,898
Other	36,501	15,419
Total other accrued expenses and current liabilities	$ 187,579	$ 118,046

LONG TERM DEBT - Summary of long-term debt (Details) - USD ($)
$ in Thousands

Jun. 30, 2016

Jun. 30, 2015

Less unamortized debt issuance costs

$ 1,472,833

$ 1,074,297

^[1]

(16,789)

(10,733)

Total long-term debt

1,456,044

1,063,564

Less current portion

(53,965)

(38,965)

Long-term debt, net of current portion

1,402,079

1,024,599

Bank credit facility - term loans

Bank credit facility - revolver loans

1,032,833

779,297

$ 440,000

$ 295,000

[1]	Balance as of June 30, 2015 has been adjusted for the reclassification of debt issuance costs related to the adoption of ASU 2015-03. See Note 3 for additional information.

LONG TERM DEBT - Components of interest expense (Details 1) - Convertible Notes Payable - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Coupon interest			$ 5,313
Non-cash amortization of discount			11,421
Amortization of issuance costs			683
Total			$ 17,417

LONG TERM DEBT - Effect of derivative instruments (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Long-Term Debt [Abstract]
(Loss) gain recognized in other comprehensive income	$ (14,859)	$ (9,422)	$ (4,999)
Amounts reclassified to earnings from accumulated other comprehensive loss	8,867	7,024	1,356
Net current period other comprehensive income (loss)	$ (5,992)	$ (2,398)	$ (3,643)

LONG TERM DEBT - Aggregate maturities of long-term debt (Details 3) - USD ($)
$ in Thousands

Jun. 30, 2016

Jun. 30, 2015

Long-Term Debt [Abstract]

$ 53,965

53,965

107,930

1,256,973

Less unamortized debt issuance costs

1,472,833

$ 1,074,297

^[1]

(16,789)

(10,733)

Total long-term debt

$ 1,456,044

$ 1,063,564

[1]	Balance as of June 30, 2015 has been adjusted for the reclassification of debt issuance costs related to the adoption of ASU 2015-03. See Note 3 for additional information.

LONG TERM DEBT (Detail Textuals) - USD ($)
$ in Thousands

1 Months Ended

12 Months Ended

Nov. 15, 2013

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

Outstanding amount under Credit Facility

$ 272

$ 4,116

$ 1,472,833

1,074,297

Unamortized debt issuance expense

^[1]

16,789

10,733

Proceeds from borrowings under bank credit facilities

1,058,500

438,969

1,577,000

Six3 Systems Holdings II Inc

$ (4,100)

Bank Credit Facility

Credit facility borrowing capacity, description

$ 1,981,300

At any time and so long as no default has occurred, the Company has the right to increase the Revolving Facility or the Term Loan in an aggregate principal amount of up to the greater of $400.0 million or an amount subject to 2.75 times senior secured leverage, calculated assuming the Revolving Facility is fully drawn, with applicable lender approvals.

Loan maturity date

Jun. 01, 2020

Outstanding borrowings interest rate

2.99%

Debt issuance cost

$ 18,700

Bank Credit Facility | Long-term Debt

Unamortized debt issuance expense

16,800

Revolving Credit Facility

Outstanding amount under Credit Facility

850,000

440,000

295,000

Proceeds from borrowings under bank credit facilities

250,000

Revolving Credit Facility | Six3 Systems Holdings II Inc

Proceeds from borrowings under bank credit facilities

$ 100,000

Same-Day Swing Line Loan Revolving Credit Sub Facility

Stand-By Letters Of Credit Revolving Credit Sub Facility

100,000

Outstanding Letters of Credit

25,000

400

Term Loan

Term loan frequency of payment

$ 1,131,300

Term loan period

5 years

quarterly

Outstanding amount under Credit Facility

$ 1,032,833

$ 779,297

Term Loan | Six3 Systems Holdings II Inc

300,000

Term Loan | Principal Payment Through June 30, 2018

$ 700,000

Term loan principal payment

13,500

Term Loan | Principal Payment Thereafter June 30, 2018

Term loan principal payment

$ 27,000

[1]	Balance as of June 30, 2015 has been adjusted for the reclassification of debt issuance costs related to the adoption of ASU 2015-03. See Note 3 for additional information.

LONG TERM DEBT (Detail Textuals 1) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	12 Months Ended
	May 01, 2014	May 16, 2007	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Dilutive effect of the Warrants				56,000	239,000
Cash Flow Hedging \| Interest Rate Swap
Debt Instrument [Line Items]
Aggregate notional amount			$ 900.0
Convertible Notes Payable
Debt Instrument [Line Items]
Convertible senior subordinated notes, issuance date		May 16, 2007
Par value of Convertible Notes		$ 300.0
Convertible Senior Subordinated Notes, maturity date		May 01, 2014
Convertible Notes - aggregate conversion value	$ 406.8
Settlement of Convertible Notes in cash	$ 300.0
Settlement of Convertible Notes in shares	1,400,000
Outstanding borrowings interest rate		6.90%
Fair value of the liability component of notes		$ 221.9
Fair value of equity component		$ 78.1
Debt discount amortization period		7 years
Convertible Notes Payable \| Call Options
Debt Instrument [Line Items]
Call options, cost			$ 84.4
Call options, maximum number of shares that can be purchased			5,500,000
Call options, strike price			$ 54.65
Number of shares received upon exercise of options	1,400,000
Convertible Notes Payable \| Warrants
Debt Instrument [Line Items]
Warrant's exercise price			$ 68.31
Warrants, maximum number of shares that can be issued			5,500,000
Warrants, proceeds from sale			$ 56.5
Warrants, number of shares issued upon settlement				497,550

LEASES - Future Minimum Lease Payments Due Under Non-Cancelable Leases (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Leases [Abstract]
2017	$ 65,668
2018	56,185
2019	52,973
2020	42,303
2021	35,355
Thereafter	99,190
Total minimum lease payments	$ 351,674

LEASES (Detail Textuals) - USD ($) $ in Millions	12 Months Ended
LEASES (Detail Textuals) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Leases [Abstract]
Operating leases, term of contract	14 years
Net sublease rental income	$ 0.4
Operating lease rent expense	$ 62.8	$ 54.6	$ 51.8

OTHER LONG-TERM LIABILITIES - Components Of Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Other Long-Term Liabilities [Abstract]
Deferred rent, net of current portion	$ 32,907	$ 28,038
Interest rate swap agreements	21,609	11,728
Deferred acquisition and contingent consideration	18,642
Deferred revenue	7,234	7,784
Accrued post-retirement obligations	6,569	6,103
Reserve for unrecognized tax benefits	249	5,880
Other	110	848
Total other long-term liabilities	$ 87,320	$ 60,381

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

Revenue from external customers

OTHER LONG-TERM LIABILITIES (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Costs associated with post-retirement plan	$ 400	$ 300
Fair Value, Measurements, Recurring \| Other long-term liabilities \| Level 2 \| Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreements	$ 21,609	$ 11,728

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Summarized Financial Information Of Reportable Segments) (Details) - USD ($)
$ in Thousands

3 Months Ended

12 Months Ended

Jun. 30, 2016

Mar. 31, 2016

^[1]

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

Jun. 30, 2013

$ 1,113,900

$ 977,274

$ 830,437

$ 822,442

$ 865,506

$ 817,797

$ 815,423

$ 814,726

$ 3,744,053

$ 3,313,452

$ 3,564,562

43,599

^[2]

$ 34,116

^[2]

$ 30,452

^[2]

$ 34,632

^[2]

41,384

$ 29,039

$ 24,642

$ 31,130

142,799

126,195

135,316

Net assets

1,607,313

1,480,272

1,607,313

1,480,272

1,359,166

$ 1,207,572

2,585,343

2,189,816

2,585,343

2,189,816

2,188,569

Total long-term assets

3,065,503

2,575,920

^[3]

3,065,503

2,575,920

^[3]

2,617,102

^[3]

Depreciation and amortization

3,987,341

3,242,030

^[3]

3,987,341

3,242,030

^[3]

3,330,257

^[3]

Capital expenditures

20,835

17,444

15,279

64,752

66,083

65,181

Domestic Operations

Revenue from external customers

3,593,924

3,168,864

3,421,544

129,568

114,658

124,599

Net assets

1,476,924

1,343,152

1,476,924

1,343,152

1,221,641

2,487,148

2,108,767

2,487,148

2,108,767

2,099,821

Total long-term assets

2,943,896

2,473,470

^[3]

2,943,896

2,473,470

^[3]

2,503,805

^[3]

Depreciation and amortization

3,798,013

3,055,782

^[3]

3,798,013

3,055,782

^[3]

3,141,602

^[3]

Capital expenditures

18,339

15,324

13,737

60,637

61,587

61,207

International Operations

Revenue from external customers

150,129

144,588

143,018

13,231

11,537

10,717

Net assets

130,389

137,120

130,389

137,120

137,525

98,195

81,049

98,195

81,049

88,748

Total long-term assets

121,607

102,450

^[3]

121,607

102,450

^[3]

113,297

^[3]

Depreciation and amortization

$ 189,328

$ 186,248

^[3]

189,328

186,248

^[3]

188,655

^[3]

Capital expenditures

2,496

2,120

1,542

$ 4,115

$ 4,496

$ 3,974

[1]	Acquisition of NSS on February 1, 2016.
[2]	Quarterly FY2016 balances have been adjusted to reflect the adoption of ASU 2016-09 as of the beginning of the fiscal year. See Note 3 for additional information.
[3]	Adjusted for the reclassification of debt issuance costs and deferred taxes pursuant to the adoption of ASU 2015-03 and ASU 2015-17. See Note 3 to the Consolidated Financial Statements for further information.

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Revenue By Customer Sector) (Details 1) - USD ($)
$ in Thousands

3 Months Ended

12 Months Ended

Jun. 30, 2016

Mar. 31, 2016

^[1]

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

$ 1,113,900

$ 977,274

$ 830,437

$ 822,442

$ 865,506

$ 817,797

$ 815,423

$ 814,726

$ 3,744,053

$ 3,313,452

$ 3,564,562

Sales

$ 3,744,053

$ 3,313,452

$ 3,564,562

Department of Defense | Sales

100.00%

$ 2,439,329

$ 2,217,031

$ 2,578,024

Federal civilian agencies | Sales

65.10%

66.90%

72.30%

$ 1,062,508

$ 888,191

$ 771,662

Commercial and other | Sales

28.40%

26.80%

21.70%

$ 227,145

$ 202,858

$ 199,521

State and local governments | Sales

6.10%

5.60%

$ 15,071

$ 5,372

$ 15,355

0.40%

0.20%

0.40%

[1]	Acquisition of NSS on February 1, 2016.

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Detail Textuals) - Segment	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Revenue, Major Customer [Line Items]
Number of reportable segments	2
Sales
Revenue, Major Customer [Line Items]
Revenue percentage	100.00%	100.00%	100.00%
U.S. Government \| Sales
Revenue, Major Customer [Line Items]
Revenue percentage	93.50%	93.70%	94.00%

INVESTMENTS IN JOINT VENTURES (Detail Textuals) - USD ($) $ in Millions	1 Months Ended
	Jul. 31, 2009	Jun. 30, 2016
Schedule of Equity Method Investments [Line Items]
Note receivable, AC First redemption		$ 5.0
AC FIRST LLC
Schedule of Equity Method Investments [Line Items]
CACI's percentage of ownership interest	49.00%
JV partner's percentage of ownership interest	51.00%
Percentage of investment distributed		90.00%
Percentage of investment remaining to be distributed		10.00%

OTHER COMMITMENTS AND CONTINGENCIES (Detail Textuals) $ in Millions	12 Months Ended
	Jun. 30, 2016 USD ($)
Minimum
Loss Contingencies [Line Items]
Accrued estimates of the possible losses	$ 0.0
Value added tax examination, range of possible losses	0.0
Sales and use tax examination, range of possible losses	3.0
Maximum
Loss Contingencies [Line Items]
Accrued estimates of the possible losses	3.9
Value added tax examination, range of possible losses	3.9
Sales and use tax examination, range of possible losses	$ 5.3

INCOME TAXES - Schedule Of Income Loss Before Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Domestic	$ 207,641	$ 187,332	$ 204,879
Foreign	15,971	14,190	13,763
Income before income taxes	$ 223,612	$ 201,522	$ 218,642

INCOME TAXES - Schedule Of Components Of Income Tax Expense (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Current:
Federal	$ 54,507	$ 37,159	$ 53,055
State and local	9,401	8,080	11,456
Foreign	3,337	3,066	3,256
Total current	67,245	48,305	67,767
Deferred:
Federal	11,978	23,261	12,580
State and local	2,028	3,964	2,680
Foreign	(438)	(203)	299
Total deferred	13,568	27,022	15,559
Total income tax expense	$ 80,813	$ 75,327	$ 83,326

INCOME TAXES - Schedule Of Effective Income Tax Rate Reconciliation (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Expected tax expense computed at federal rate	$ 78,264	$ 70,533	$ 76,525
State and local taxes, net of federal benefit	7,429	7,828	9,188
Nondeductible items	2,936	2,166	1,150
Effect of foreign tax rates	(2,308)	(2,135)	(1,885)
Other	(5,508)	(3,065)	(1,652)
Total income tax expense	$ 80,813	$ 75,327	$ 83,326

INCOME TAXES - Schedule Of Deferred Tax Assets And Liabilities (Details 3) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Deferred tax assets:
Deferred compensation and post-retirement obligations	$ 35,724	$ 34,963
Reserves and accruals	39,903	25,498
Stock-based compensation	9,833	7,242
Interest rate swap	8,505	4,616
Deferred rent	5,765	4,886
Other	8,353	11,760
Total deferred tax assets	108,083	88,965
Deferred tax liabilities:
Goodwill and other intangible assets	(320,811)	(258,498)
Unbilled revenue	(18,740)	(15,652)
Prepaid expenses	(8,308)	(5,452)
Other	(8,682)	(9,600)
Total deferred tax liabilities	(356,541)	(289,202)
Net deferred tax liability	$ (248,458)	$ (200,237)

INCOME TAXES - Schedule Of Unrecognized Tax Benefits (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning of year	$ 6,220	$ 9,636	$ 8,184
Additions based on current year tax positions	89	1,468	2,023
Reductions based on changes to prior year tax positions		(3,522)
Lapse of statute of limitations	(128)	(1,344)	(426)
Settlement with taxing authorities	(5,783)	(18)	(145)
End of year	$ 398	$ 6,220	$ 9,636

INCOME TAXES (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
INCOME TAXES (Detail Textuals) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Statutory U.S. income tax rate	35.00%
Undistributed earnings	$ 13,300
Unrecognized tax benefit that would impact the company's effective tax rate	400	$ 1,300	$ 2,400
Income Tax Contingency [Line Items]
Liability for unrecognized tax benefits	398	$ 6,220	$ 9,636	$ 8,184
Other long-term liabilities
Income Tax Contingency [Line Items]
Liability for unrecognized tax benefits	$ 200

RETIREMENT SAVINGS PLANS (Detail Textuals) - USD ($)	12 Months Ended
RETIREMENT SAVINGS PLANS (Detail Textuals) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Defined Contribution Plan Disclosure [Line Items]
Supplemental savings plan obligation, current portion	$ 228,362,000	$ 185,830,000
401 (k) Plan
Defined Contribution Plan Disclosure [Line Items]
Employee contribution, maximum percentage of compensation	75.00%
Employer matching contribution, percent of match	6.00%
Employer matching contribution, percent of employee salary deferral	50.00%
Contribution expense	$ 25,500,000	22,500,000	$ 21,900,000
Employer contribution vesting period	3 years
Six3 Retirement Savings Plans
Defined Contribution Plan Disclosure [Line Items]
Contribution expense	$ 0	700,000
Discretionary contribution expense	20,600,000	18,000,000
International Operations Defined Contribution Plans
Defined Contribution Plan Disclosure [Line Items]
Contribution expense	1,400,000	1,100,000	1,100,000
Supplemental Savings Plan
Defined Contribution Plan Disclosure [Line Items]
Contribution expense	500,000	500,000	$ 300,000
Company contributions	$ 400,000
Employee contribution maximum, percentage of base compensation	50.00%
Employee contribution maximum, percentage of bonuses and commissions	100.00%
Employer contribution percentage	5.00%
Employer contribution vesting period	5 years
Annual IRC compensation limit	$ 265,000
Supplemental savings plan obligation	83,900,000
Supplemental savings plan obligation, current portion	6,900,000
Change in supplemental savings plan obligation	1,200,000
Investment gains	2,000,000
Participant compensation deferral	6,900,000
Distributions paid to participants	8,100,000
Rabbi Trust \| Supplemental Savings Plan
Defined Contribution Plan Disclosure [Line Items]
Investment gains	1,800,000	2,000,000
COLI portion of supplemental savings plan assets	$ 88,800,000	$ 89,000,000

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of the components of stock-based compensation expense with the income tax benefits realized (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Stock-based compensation included in indirect costs and selling expense:
Restricted stock and RSU expense	$ 17,919	$ 14,072	$ 11,516
SSARs and non-qualified stock option expense			41
Total stock-based compensation expense	17,919	14,072	11,557
Income tax benefit recognized for stock-based compensation expense	$ 6,476	$ 5,260	$ 4,392

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of activity for outstanding SSARs And Stock Options (Details 1) - SSARs and Stock Options - $ / shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Exercise Price 37.67 - 59.30
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Minimum		$ 37.67	$ 37.67
Exercise Price, Maximum		$ 59.30	$ 59.30
Number of Shares
Outstanding, Beginning Balance		91,950	275,550
Exercisable, Beginning Balance		91,950	243,170
Exercised		(44,290)
Outstanding, Ending Balance			91,950
Exercisable, Ending Balance			91,950
Weighted Average Exercise Price
Outstanding, Beginning Balance		$ 48.77	$ 48.62
Exercisable, Beginning Balance		48.77	48.58
Exercised		49.36
Outstanding, Ending Balance			48.77
Exercisable, Ending Balance			48.77
Weighted Average Grant Date Fair Value
Outstanding, Beginning Balance		17.02	17.54
Exercisable, Beginning Balance		17.02	17.60
Exercised		17.33
Outstanding, Ending Balance			17.02
Exercisable, Ending Balance			17.02
Exercise Price 45.77 - 49.36
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Minimum			45.77
Exercise Price, Maximum			$ 49.36
Number of Shares
Exercised			(180,370)
Weighted Average Exercise Price
Exercised			$ 48.53
Weighted Average Grant Date Fair Value
Exercised			17.81
Exercise Price 49.36
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Minimum			$ 49.36
Number of Shares
Expired			(2,080)
Forfeited			(1,150)
Weighted Average Exercise Price
Forfeited			$ 49.36
Expired			49.36
Weighted Average Grant Date Fair Value
Forfeited			17.12
Expired			$ 17.12
Exercise Price 47.59
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Minimum		$ 47.59
Number of Shares
Expired		(5,000)
Weighted Average Exercise Price
Expired		$ 47.59
Weighted Average Grant Date Fair Value
Expired		10.68
Exercise Price 37.67 - 49.36
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Minimum	$ 37.67	37.67
Exercise Price, Maximum	$ 49.36	$ 49.36
Number of Shares
Outstanding, Beginning Balance	42,660
Exercisable, Beginning Balance	42,660
Exercised	(35,860)
Outstanding, Ending Balance		42,660
Exercisable, Ending Balance		42,660
Weighted Average Exercise Price
Outstanding, Beginning Balance	$ 48.29
Exercisable, Beginning Balance	48.29
Exercised	48.18
Outstanding, Ending Balance		$ 48.29
Exercisable, Ending Balance		48.29
Weighted Average Grant Date Fair Value
Outstanding, Beginning Balance	17.45
Exercisable, Beginning Balance	17.45
Exercised	17.25
Outstanding, Ending Balance		17.45
Exercisable, Ending Balance		$ 17.45
Exercise Price 48.83
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Minimum	$ 48.83
Number of Shares
Expired	(6,800)
Weighted Average Exercise Price
Expired	$ 48.83
Weighted Average Grant Date Fair Value
Expired	$ 18.50

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of activity related to SSARs/non-qualified stock options and RSUs/restricted shares issued (Details 2) - $ / shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
SSARs and Stock Options
Number of Shares
Unvested, June 30			32,380
Granted
Vested			(31,230)
Forfeited			(1,150)
Unvested, June 30
Weighted Average Grant Date Fair Value
Unvested			$ 17.02
Granted
Vested			17.02
Forfeited			17.12
Unvested
Restricted Stock And Restricted Stock Units
Number of Shares
Unvested, June 30	864,566	838,242	1,042,746
Granted	275,117	322,121	254,356
Vested	(209,448)	(250,613)	(360,857)
Forfeited	(56,381)	(45,184)	(98,003)
Unvested, June 30	873,854	864,566	838,242
Weighted Average Grant Date Fair Value
Unvested, June 30	$ 64.79	$ 55.39	$ 47.74
Granted	80.72	76.37	72.17
Vested	49.48	47.84	45.07
Forfeited	75.79	66.89	54.94
Unvested, June 30	$ 71.20	$ 64.79	$ 55.39

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of information regarding the cash proceeds received, and the intrinsic value and total tax benefits realized resulting from stock option exercises (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Stock Plans And Stock-Based Compensation [Abstract]
Cash proceeds received		$ 872
Intrinsic value realized	1,286	1,646	3,868
Income tax benefit realized	$ 465	$ 615	$ 1,470

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of activity related to the MSPP (Details 4) - MSPP - RSUs	12 Months Ended
	Jun. 30, 2016 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
RSUs outstanding, June 30, 2015	5,905
Granted	703
Issued	(5,215)
Forfeited
RSUs outstanding, June 30, 2016	1,393
Weighted average grant date fair value as adjusted for the applicable discount \| $ / shares	$ 73.72

STOCK PLANS AND STOCK-BASED COMPENSATION (Detail Textuals) $ in Millions	12 Months Ended
	Jun. 30, 2016 USD ($) shares
Restricted Shares And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost \| $	$ 32.2
Weighted-average period to recognize unrecognized compensation cost (in years)	2 years 4 months 24 days
2006 Stock Incentive Plan \| PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period to establish average share price for performance measurement	90 days
2006 Stock Incentive Plan \| PRSUs \| September 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PRSUs granted	202,170
2006 Stock Incentive Plan \| PRSUs \| September 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PRSUs granted	180,570
2006 Stock Incentive Plan \| PRSUs \| September 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PRSUs granted	208,160
2006 Stock Incentive Plan \| RSUs \| September 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of awards	50.00%
2006 Stock Incentive Plan \| RSUs \| September 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of awards	50.00%
2006 Stock Incentive Plan \| RSUs \| September 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of awards	50.00%
2006 Stock Incentive Plan \| RSUs \| September 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of awards	50.00%
2006 Stock Incentive Plan \| RSUs \| September 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional awards to be issued pursuant to condition	202,170
2006 Stock Incentive Plan \| RSUs \| September 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Description of issuance of awards condition	The specified EPS for the year ended June 30, 2015 was met and the average share price of the Company's stock for the 90 day period ending September 23, 2015 exceeded the average share price of the Company's stock for the 90 day period ended September 23, 2014 resulting in an additional 7,884 RSUs earned by participants.
Number of additional awards to be issued pursuant to condition	7,884
2006 Stock Incentive Plan \| RSUs \| September 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period to establish average share price for performance measurement	90 days
Description of issuance of awards condition	If EPS for the year ending June 30, 2016 exceeds the specified EPS and the average share price of the Company's stock for the 90 day periods ending September 18, 2016, 2017 and 2018 exceeds the average share price of the Company's stock for the 90 day period ended September 18, 2015 by 100 percent or more, then an additional 208,160 RSUs could be earned by participants.
Number of additional awards to be issued pursuant to condition	208,160
Description of vesting of awards	In addition to the performance and market conditions, there is a service vesting condition which stipulates that 50 percent of the earned award will vest on September 18, 2018 and 50 percent of the earned award will vest on September 18, 2019
2006 Plan And Predecessor Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grants	12,450,000
Cumulative grants of equity instruments	13,763,280
Number of equity instruments forfeited	4,213,316

STOCK PLANS AND STOCK-BASED COMPENSATION (Detail Textuals 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess tax benefits recognized	$ 1,200	$ 3,500	$ 4,700
Vesting period one	3 years
Vesting period two	4 years
Vesting period three	5 years
Term of equity instruments granted (in years)	7 years
Vesting percentage based on death or permanent disability of grantees	100.00%
Vesting percentage based upon retirement	100.00%
Tax benefit realized from vesting of restricted stock units	$ 6,476	5,260	4,392
Stock-based compensation expense	$ 17,919	$ 14,072	$ 11,557
SSARs and Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	5 years
Restricted Shares And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Weighted-average fair value of equity instruments granted	$ 80.72	$ 76.37	$ 72.17
Total intrinsic value of RSUs that vested	$ 18,400	$ 18,600	$ 23,100
Tax benefit realized from vesting of restricted stock units	3,300	$ 7,000	8,800
Grant date fair value of stock options vested			$ 500
Unrecognized compensation cost	$ 32,200
Weighted-average period to recognize unrecognized compensation cost (in years)	2 years 4 months 24 days
Share price	$ 0.8071
Risk free rate of return	0.97%
Expected volatility	19.17%
2002 Employee Stock Purchase Plan (ESPP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grants	1,250,000
Share purchase price over fair market value	95.00%
Maximum number of shares that an eligible employee can purchase	The maximum number of shares that an eligible employee can purchase during any quarter is equal to two times an amount determined as follows: 20 percent of such employee's compensation over the quarter, divided by 95 percent of the fair market value of a share of common stock on the last day of the quarter.
Percent of employee compensation over the quarter	20.00%
Percent of fair market value of shares	95.00%
2002 Employee Stock Purchase Plan (ESPP) \| Participants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased under ESPP	1,071,706
Weighted-average purchase price per share	$ 49.75
2002 Employee Stock Purchase Plan (ESPP) \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased under ESPP	36,773
Weighted-average purchase price per share	$ 82.60
MSPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Number of shares authorized for grants	500,000
Percentage of annual bonus in lieu of which RSU received	85.00%
MSPP \| Senior Executive
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annual bonus in lieu of which RSU received	100.00%
DSPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grants	75,000
DSPP \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annual retainer fees in lieu of which RSU received	100.00%

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - Fair Value, Measurements, Recurring - Other long-term liabilities - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Level 2 \| Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreements	$ 21,609	$ 11,728
Level 3 \| Contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 15,171

FAIR VALUE OF FINANCIAL INSTRUMENTS (Detail Textuals) $ in Millions	12 Months Ended
	Jun. 30, 2016 USD ($)
Fair Value Disclosures [Abstract]
Change in fair value of contingent consideration	$ 0.7

EARNINGS PER SHARE - Computation Of Earnings Per Share And Weighted Average Number Of Basic And Diluted Shares (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

3 Months Ended

12 Months Ended

Jun. 30, 2016

Mar. 31, 2016

^[2]

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

Earnings Per Share [Abstract]

Weighted-average number of basic shares outstanding during the period

$ 43,599

^[1]

$ 34,116

^[1]

$ 30,452

^[1]

$ 34,632

^[1]

$ 41,384

$ 29,039

$ 24,642

$ 31,130

$ 142,799

$ 126,195

$ 135,316

24,319

24,277

24,246

24,208

24,180

24,165

23,890

23,565

24,262

23,948

23,429

Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method

540

384

441

Dilutive effect of the Convertible Notes

1,046

Dilutive effect of the Warrants

56

239

Weighted-average number of diluted shares outstanding during the period

24,900

^[1]

24,801

^[1]

24,786

^[1]

24,721

^[1]

24,613

24,527

24,314

24,104

24,802

24,388

25,155

Basic earnings per share (in dollars per share)

$ 1.79

^[1]

$ 1.41

^[1]

$ 1.26

^[1]

$ 1.43

^[1]

$ 1.71

$ 1.20

$ 1.03

$ 1.32

$ 5.89

$ 5.27

$ 5.78

Diluted earnings per share (in dollars per share)

$ 1.75

^[1]

$ 1.38

^[1]

$ 1.23

^[1]

$ 1.40

^[1]

$ 1.68

$ 1.18

$ 1.01

$ 1.29

$ 5.76

$ 5.17

$ 5.38

[1]	Quarterly FY2016 balances have been adjusted to reflect the adoption of ASU 2016-09 as of the beginning of the fiscal year. See Note 3 for additional information.
[2]	Acquisition of NSS on February 1, 2016.

EARNINGS PER SHARE (Detail Textuals) - Convertible Notes Payable - $ / shares		12 Months Ended
	May 01, 2014	Jun. 30, 2016	Jun. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Settlement of convertible notes in shares	1,400,000
Call Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares received upon exercise of options	1,400,000
Call options, strike price		$ 54.65
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrant's exercise price		$ 68.31
Warrants, number of shares issued upon settlement			497,550

QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

3 Months Ended

12 Months Ended

Jun. 30, 2016

Mar. 31, 2016

^[1]

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2014

Quarterly Financial Data [Abstract]

$ 1,113,900

$ 977,274

$ 830,437

$ 822,442

$ 865,506

$ 817,797

$ 815,423

$ 814,726

$ 3,744,053

$ 3,313,452

$ 3,564,562

Income from operations

81,084

63,676

55,482

64,508

75,079

53,715

47,528

60,059

264,750

236,381

257,403