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Revenue from Contracts with Customers - Summary of Revenue from External Customers (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Revenue from External Customer [Line Items]
Total	$ 201,098	$ 242,238	$ 222,012
United States [Member]
Revenue from External Customer [Line Items]
Total	197,246	236,187	214,379
Canada [Member]
Revenue from External Customer [Line Items]
Total	2,474	4,215	4,543
India and Other [Member]
Revenue from External Customer [Line Items]
Total	$ 1,378	$ 1,836	$ 3,090

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
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