Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2017
Accounting Policies [Line Items]
Impairment losses	$ 0	$ 0	$ 0
Impairment charge of indefinite-lived intangible assets	0
Income tax receivable, current	11,259,000	9,388,000
Advertising expenses	$ 5,000,000.0	4,300,000	$ 4,000,000.0
Shares issued			133,336
Mezzanine equity Lapsed	66,664
Accumulated deficit	$ (121,577,000)	(102,087,000)
Additional paid-in capital	721,307,000	724,226,000
Convertible senior notes, net	0	$ 199,705,000
Prepaid Expenses and Other Current Assets [Member]
Accounting Policies [Line Items]
Assets held for sale - building and related assets	2,700,000
Operating Income [Member]
Accounting Policies [Line Items]
Govenment funds	$ 3,000,000.0
ASU 2019-12
Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]		true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]		true
ASU 2021-08
Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]		true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]		true
Restricted Stock Units (RSUs) [Member]
Accounting Policies [Line Items]
Stock-based compensation awards requisite service period	4 years
Class A Common Stock [Member] | Put Option [Member]
Accounting Policies [Line Items]
Put right exercise period from date of purchase				5 years
Shares issued				200,000
Put right, exercise price				$ 12.50
Ministry of the Economy, Finance and Industry, France [Member] | Research and Development Tax Credit Carryforward [Member]
Accounting Policies [Line Items]
Tax credit carryforward, period	3 years
Income tax receivable	$ 10,000,000.0	$ 12,000,000.0
Income tax receivable, current	3,100,000	3,500,000
Income tax receivable, noncurrent	$ 6,900,000	$ 8,500,000
Building and Improvements [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	5 years
Building and Improvements [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	39 years
Computer Equipment and Software [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	3 years
Computer Equipment and Software [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	5 years
Office Furniture and Equipment [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	5 years
Office Furniture and Equipment [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	15 years
Right-of-Use Assets Under Finance Leases [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	5 years
Right-of-Use Assets Under Finance Leases [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property and equipment, estimated useful life	10 years