Derivatives - Schedule of Outstanding Foreign Exchange Contracts, Primarily Forward Contracts (Detail) - Foreign Exchange Contracts [Member] - USD ($)	Sep. 30, 2016	Jun. 30, 2016
Derivative [Line Items]
Gross Notional Value	$ 1,741,052,000	$ 2,027,191,000
Fair Value Asset/(Liability)	121,124,000	139,259,000
U.S. Dollar/Euro [Member]
Derivative [Line Items]
Gross Notional Value	1,229,309,000	1,516,094,000
Fair Value Asset/(Liability)	117,825,000	149,901,000
Indian Rupee/U.S. Dollar [Member]
Derivative [Line Items]
Gross Notional Value	238,655,000	251,355,000
Fair Value Asset/(Liability)	6,286,000	(721,000)
Euro/U.S. Dollar [Member]
Derivative [Line Items]
Gross Notional Value	145,722,000	224,921,000
Fair Value Asset/(Liability)	(375,000)	(6,280,000)
U.S. Dollar/Chinese Yuan [Member]
Derivative [Line Items]
Gross Notional Value	46,507,000
Fair Value Asset/(Liability)	(226,000)
Chinese Yuan/U.S. Dollar [Member]
Derivative [Line Items]
Gross Notional Value	39,794,000
Fair Value Asset/(Liability)	42,000
U.S. Dollar/Brazilian Real [Member]
Derivative [Line Items]
Gross Notional Value	12,122,000	20,958,000
Fair Value Asset/(Liability)	(1,636,000)	(2,459,000)
Euro/Russian Rubles [Member]
Derivative [Line Items]
Gross Notional Value	11,610,000	3,601,000
Fair Value Asset/(Liability)	(150,000)	(667,000)
Russian Rubles/Euro [Member]
Derivative [Line Items]
Gross Notional Value	7,952,000
Fair Value Asset/(Liability)	89,000
U.S. Dollar/Russian Rubles [Member]
Derivative [Line Items]
Gross Notional Value	7,849,000	9,517,000
Fair Value Asset/(Liability)	(679,000)	(478,000)
Australian Dollar/U.S. Dollar [Member]
Derivative [Line Items]
Gross Notional Value	766,000
Fair Value Asset/(Liability)	9,000	0
U.S. Dollar/Australian Dollar [Member]
Derivative [Line Items]
Gross Notional Value	766,000	745,000
Fair Value Asset/(Liability)	$ (61,000)	$ (37,000)