Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Income Taxes [Line Items]
Income tax expense	$ 33,050	$ 29,132	$ 66,600	$ 56,904
Effective tax rate	22.60%	20.00%	24.90%	22.20%
Unrecognized tax benefits	$ 57,100		$ 57,100
Interest related to unrecognized tax benefits			2,500
Tax reserves on uncertain tax positions	1,500		1,400
Unrecognized tax benefits that impact effective tax rate	6,000		6,000
Unrecognized tax benefit, decrease amount			(2,800)	$ (500)
German Tax Authorities [Member]
Schedule Of Income Taxes [Line Items]
Tax reserves on uncertain tax positions	2,800		2,800
Decrease in interest expense on prior year exposures of uncertain tax positions	$ 1,600		$ 1,500