Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Contingencies And Commitments [Line Items]
Operating leases, rent expense	$ 9,600,000	$ 7,100,000	$ 7,100,000
Maximum amount of potential future payments under the company's financial guarantees	200,000
Non-cancelable purchase commitments	16,800,000
Indemnification [Member]
Contingencies And Commitments [Line Items]
Accrual for indemnification provisions	0
Israel [Member]
Contingencies And Commitments [Line Items]
Guarantees which major related to rent	500,000
Royalty expenses	$ 4,400,000	$ 3,000,000	$ 2,400,000
Property Subject to Operating Lease [Member] | Maximum [Member]
Contingencies And Commitments [Line Items]
Lease Expiration Date	May 01, 2022
Property Subject to Operating Lease [Member] | Maximum [Member] | Israel [Member]
Contingencies And Commitments [Line Items]
Lease Expiration Date	Jan. 01, 2016