Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2023 USD ($) Segment Customer Plans	Dec. 31, 2022 USD ($) Customer Segment	Dec. 31, 2021 USD ($) Customer
Accounting Policies [Line Items]
Short-term investments	$ 0	$ 0
Long-term investments	$ 0	$ 0
Number of customers accounted for more than 10% of total revenue | Customer	0	0	0
Threshold percentage of total revenues required for major customer classification	10.00%	10.00%	10.00%
Number of customers accounted for more than 10% of net accounts receivable | Customer	0	0
Capitalized software development costs	$ 11,700,000	$ 15,500,000	$ 7,700,000
Amortization of capitalized internal-use software development costs	9,900,000	5,200,000	3,600,000
Recorded liabilities for uncertain tax position	$ 0	0
Number of stock-based compensation plans | Plans	7
Advertising costs	$ 2,700,000	4,800,000	$ 6,000,000
Financial instruments carried at fair value	100,000	100,000
Reversed deferred rent liability	$ 1,800,000	$ 1,800,000
Number of Reporting Units | Segment	1	1
Software [Member]
Accounting Policies [Line Items]
Estimated Useful Life (in Years)	3 years