The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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-Topic 460
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-Section 50
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Amount of loss contingency liability.

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Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments and Contingencies - Additional Information (Detail)	1 Months Ended
	Jun. 30, 2012 Patents	Oct. 30, 2011 Patents	Mar. 31, 2017 USD ($)
Other Commitments [Line Items]
Non-cancelable purchase commitments			$ 27,300,000
Maximum amount of potential future payments under the company's financial guarantees			700,000
Loss Contingency, Patents Allegedly Infringed, Number \| Patents	1	2
Guarantee Obligations [Member]
Other Commitments [Line Items]
Guarantees related to rent obligations			2,000,000
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