Sales Recognition - Summary of Changes in Contract Assets and Contract Liabilities from Contract with Customers (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($)
Revenue From Contract With Customer [Abstract]
Beginning balance, Contract Assets	$ 892
Reclassification of the beginning contract assets to receivables, as the result of rights to consideration becoming unconditional, Contract Assets	(117)
Contract assets recognized, net of reclassification to receivables, Contract Assets	432
Ending balance, Contract Assets	1,207
Beginning balance, Contract Liabilities	82,117
Reclassification of the beginning contract liabilities to revenue, as the result of performance obligations satisfied, Contract Liabilities	(17,651)
Cash received in advance and not recognized as revenue, Contract Liabilities	24,335
Ending balance, Contract Liabilities	$ 88,801

Contract with customer, assets recognized, net of reclassification to receivables.

No definition available.

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- Definition

Contract with customer, liability, cash received in advance and not recognized as revenue.

+ References

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
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- Definition

Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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- Definition

Amount of revenue recognized arising from contract liability from change in timeframe for performance obligation to be satisfied.

+ References

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- References

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