Hedging (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Cash Flow Hedging Instruments

The following table summarizes the notional amount of the Company’s outstanding foreign currency forward contracts designated as cash flow hedges:

	As of As of December 31,
	2017		2016
Foreign Currency	(in thousands)
Euro	$	257,230	$	164,368
British pound sterling	77,481		65,237
Australian dollar	30,501		23,776
Total foreign currency forward contracts	$	365,212	$	253,381

Schedule of Foreign Exchange Contracts

The following table summarizes the fair value of the Company’s outstanding foreign currency forward contracts not designated for hedge accounting under GAAP included on the Company’s consolidated balance sheets:

	As of December 31,
	2017		2016
	(in thousands)
Prepaid expenses and other current assets	$	—	$	660
Other liabilities, current portion	684		—

The following table summarizes the fair value of the Company’s outstanding foreign currency forward contracts designated as cash flow hedges under GAAP included on the Company’s consolidated balance sheets:

As of December 31, 2017
Assets			Liabilities
Classification	Fair Value		Classification	Fair Value
(in thousands)
Prepaid and other current assets	$	13	Other liabilities, current portion	$	(13,642	)
Other assets	—		Other liabilities, excluding current portion	(866		)
Total assets	$	13	Total liabilities	$	(14,508	)

As of December 31, 2016
Assets			Liabilities
Classification	Fair Value		Classification	Fair Value
(in thousands)
Prepaid and other current assets	$	14,407	Other liabilities, current portion	$	(144	)
Other assets	1,186		Other liabilities, excluding current portion	—
Total assets	$	15,593	Total liabilities	$	(144	)

Derivatives Offsetting

The following table summarizes the potential effect of offsetting derivatives by type of financial instrument on the Company’s consolidated balance sheets:

	As of December 31, 2017
	Gross Amounts Recognized			Gross Amounts Offset		Gross Amount Presented			Gross Amount Not Offset			Legal Offset
Foreign currency forward contracts	(in thousands)
Total assets	$	13		$	—	$	13		$	(13	)	$	—
Total liabilities	(14,508		)	—		(14,508		)	13			(14,495		)

	As of December 31, 2016
	Gross Amounts Recognized			Gross Amounts Offset		Gross Amount Presented			Gross Amount Not Offset			Legal Offset
Foreign currency forward contracts	(in thousands)
Total assets	$	15,593		$	—	$	15,593		$	(144	)	$	15,449
Total liabilities	(144		)	—		(144		)	144			—