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, 2016	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Goodwill		$ 2,585,343								$ 2,189,816				$ 2,585,343	$ 2,585,343	$ 2,189,816	$ 2,188,569
Revenue		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
Net income		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
Proceeds from borrowings under bank credit facilities															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")
Business Acquisition [Line Items]
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
Goodwill	367,722
Amount of tax deductible goodwill and intangibles	47,700
Revenue														427,200
Net income														18,800
Acquisition-related expenses															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
Business Acquisition [Line Items]
Proceeds from borrowings under bank credit facilities	250,000
L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS") | Term loans
Business Acquisition [Line Items]
Proceeds from term loan borrowings	$ 300,000
L-3 National Security Solutions, Inc. and L-3 Data Tactics Corporation ("NSS") | Customer contracts and related customer relationships
Business Acquisition [Line Items]
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.