Commitments and Contingencies - Additional Information (Detail) € in Millions			1 Months Ended		3 Months Ended
		Feb. 29, 2016 USD ($)	Jun. 30, 2012 Patents	Oct. 30, 2011 Patents	Jul. 01, 2016 USD ($)	Apr. 01, 2016 USD ($)	Feb. 29, 2016 EUR (€)
Other Commitments [Line Items]
Non-cancelable purchase commitments					$ 22,400,000
Post-closing Adjustments Period		90 days
Maximum amount of potential future payments under the company's financial guarantees					700,000
Other Payments to Acquire Businesses					2,900,000
Business Combination, Contingent Consideration, Liability, Current	[1]				2,483,000
Loss Contingency, Patents Allegedly Infringed, Number | Patents			1	2
Guarantee Obligations [Member]
Other Commitments [Line Items]
Guarantees related to rent obligations					1,900,000
Indemnification [Member]
Other Commitments [Line Items]
Accrual for indemnification provisions					0
Israel [Member] | Guarantee Obligations [Member]
Other Commitments [Line Items]
Guarantees related to rent obligations					400,000
TVN [Member] | Guarantee Obligations [Member]
Other Commitments [Line Items]
Guarantees related to rent obligations					1,300,000
TVN [Member]
Other Commitments [Line Items]
Business Combination, Contingent Consideration, Liability, Current						$ 8,000,000
TVN's 2015 revenue, difference as converted from euros to US dollars [Member] | TVN [Member]
Other Commitments [Line Items]
Business Combination, Contingent Consideration, Liability		$ 75,000,000
TVN's 2015 revenue, difference as converted from euros to US dollars [Member] | Maximum [Member] | TVN [Member]
Other Commitments [Line Items]
Business Combination, Contingent Consideration, Liability		83,300,000					€ 76
TVN's 2015 backlog [Member] | TVN [Member]
Other Commitments [Line Items]
Business Combination, Contingent Consideration, Liability					2,500,000
TVN's 2015 backlog [Member] | Maximum [Member] | TVN [Member]
Other Commitments [Line Items]
Business Combination, Contingent Consideration, Liability		$ 5,000,000
Cash Earnout [Member] | TVN [Member]
Other Commitments [Line Items]
Other Payments to Acquire Businesses					$ 3,500,000

[1] The TVN acquisition is subject to post-closing adjustments as set forth in the TVN Purchase Agreement to be determined within 90 days from the acquisition date in amounts capped to (i) the difference between €76 million (approximately $83.3 million as converted from euros into U.S. dollars using an agreed upon average exchange rate) and $75 million, with respect to an adjustment based on TVN’s 2015 revenue, and (ii) up to $5 million with respect to an adjustment based on TVN’s 2015 backlog that ships during the first half of 2016. During the second quarter of 2016, the Company paid $3.5 million upon the finalization of the revenue and working capital adjustments. The remaining backlog adjustment amount has been finalized at $2.5 million and will be paid in the third quarter of 2016.