Fair Value Measurement (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents and restricted cash	$ 146,131
Available-for-sale investments (1)	651	[1]
Foreign currency exchange contracts (2)	18,060	[2]
Assets measured at fair value at September 30, 2016	164,842
Foreign currency exchange contracts (3)	(1,270)	[3]
Liabilities measured at fair value at September 30, 2016	(1,270)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents and restricted cash	146,131
Available-for-sale investments (1)	651	[1]
Foreign currency exchange contracts (2)	0	[2]
Assets measured at fair value at September 30, 2016	146,782
Foreign currency exchange contracts (3)	0	[3]
Liabilities measured at fair value at September 30, 2016	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents and restricted cash	0
Available-for-sale investments (1)	0	[1]
Foreign currency exchange contracts (2)	18,060	[2]
Assets measured at fair value at September 30, 2016	18,060
Foreign currency exchange contracts (3)	(1,270)	[3]
Liabilities measured at fair value at September 30, 2016	$ (1,270)

[1] Included in “Short-term investments” on the Company’s Condensed Consolidated Balance Sheets.

[2] Included in “Prepaid expenses and other current assets” and “Other non-current assets” on the Company’s Condensed Consolidated Balance Sheets.

[3] Included in “Other accrued liabilities” and “Other non-current liabilities” on the Company’s Condensed Consolidated Balance Sheets.