Commitments and Contingencies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jun. 29, 2012 Patents	Oct. 31, 2011 Patents
Other Commitments [Line Items]
Operating leases, rent expense	$ 9,700,000	$ 9,000,000	$ 9,800,000
Maximum amount of potential future payments under the company's financial guarantees	1,000,000
Non-cancelable purchase commitments	24,000,000
Indemnification [Member]
Other Commitments [Line Items]
Accrual for indemnification provisions	0
ISRAEL
Other Commitments [Line Items]
Guarantees which major related to rent	1,900,000
Royalty expenses	4,100,000	$ 2,900,000	$ 3,200,000
ISRAEL | Guarantee Obligations [Member]
Other Commitments [Line Items]
Guarantees which major related to rent	$ 400,000
Property Subject to Operating Lease [Member] | Maximum [Member]
Other Commitments [Line Items]
Lease Expiration Date	Apr. 28, 2027
Property Subject to Operating Lease [Member] | Maximum [Member] | ISRAEL
Other Commitments [Line Items]
Lease Expiration Date	Jan. 01, 2019
Avid Technology Inc. [Member] | Media grid [Member]
Other Commitments [Line Items]
Infringements of number of patents held | Patents					2
Avid Technology Inc. [Member] | Spectrum [Member]
Other Commitments [Line Items]
Infringements of number of patents held | Patents				1
TVN [Member] | Guarantee Obligations [Member]
Other Commitments [Line Items]
Guarantees which major related to rent	$ 1,200,000