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Summary of Receivables and Deferred Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Balances from contracts with customers only:
Accounts receivable	$ 44,726	$ 43,068
Deferred revenue (included in accrued liabilities in the consolidated balance sheets)	6,305
Revenue recognized during the nine-month period ending September 30, 2019 relating to:
The beginning deferred revenue balance	$ 1,911

X

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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+ References

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