Debt - Schedule of Total Debt (Detail) $ in Thousands, € in Millions	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	May 27, 2015 EUR (€)	May 11, 2015 USD ($)
Debt Instrument [Line Items]
Short-term borrowings outstanding	$ 2,832	$ 0
Total debt, Book Value	1,337,976	1,396,974
Short-term debt, Book Value	(2,832)	0
Current portion of long-term debt	(55,543)	(86,641)
Total long-term debt, Book Value	1,279,601	1,310,333
Short-term debt, Fair Value	2,832
Total debt, Fair Value	1,356,406	1,416,358
Short-term debt, Fair Value	(2,832)
Total long-term debt, Fair Value	1,298,031	1,329,717
Innovative Systems GmbH [Member]
Debt Instrument [Line Items]
Total debt, Book Value	52,742	82,805
Total debt, Fair Value	52,742	82,805
Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized Senior Note issuance costs	(5,754)	(6,173)
Senior Notes [Member] | 4.150 Percent Senior Notes [Member]
Debt Instrument [Line Items]
Total debt, Book Value	400,000	400,000
Unamortized debt discount	(2,293)	(2,407)		$ (2,700)
Unamortized Senior Note issuance costs				$ (3,800)
Total debt, Fair Value	398,480	417,440
Senior Notes [Member] | 2.000 Percent Senior Notes [Member]
Debt Instrument [Line Items]
Total debt, Book Value	368,096	388,710
Unamortized debt discount	(1,117)	(1,283)	€ (1.4)
Unamortized Senior Note issuance costs | €			€ (2.6)
Total debt, Fair Value	388,046	390,654
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Total debt, Book Value	10,470	12,322
Total debt, Fair Value	10,470	12,322
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt, Book Value	513,000	523,000
Total debt, Fair Value	$ 513,000	$ 523,000