Segment Reporting - Revenue and Long-Lived Assets for Each of Geographic Areas (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 994,679	$ 981,553	$ 971,578
Long-lived Assets	104,837	94,447	89,710
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	752,824	749,700	738,937
Long-lived Assets	72,272	70,047	60,260
All other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	241,855	231,853	232,641
Long-lived Assets	$ 32,565	$ 24,400	$ 29,450