Revenue from Contracts with Customers - Summary of Receivables, Contract Assets and Contract Liabilities from Contracts with Customers (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	$ 26,794	$ 31,181
Deferred Revenue (current)	54,647	49,260
Accounting Standards Update 2014-09 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	26,794	31,181
Contract Assets (current)	2,017	1,871
Deferred Revenue (current)	54,647	49,260
Deferred Revenue (non- current)	92	299
Total Deferred Revenue	$ 54,739	$ 49,559