GEOGRAPHIC INFORMATION - Revenue and Long-Lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue and Long-lived Assets by Geography
Revenue	$ 3,364,504	$ 3,188,843	$ 2,983,277
Long-lived assets (excluding goodwill and intangible assets)	194,525	176,136
United States
Revenue and Long-lived Assets by Geography
Revenue	1,541,012	1,450,702	1,362,658
Long-lived assets (excluding goodwill and intangible assets)	$ 143,502	142,297
United States | Revenue Benchmark | Geographic Concentration Risk
Revenue and Long-lived Assets by Geography
Concentration risk (percent)	10.00%
South Korea
Revenue and Long-lived Assets by Geography
Long-lived assets (excluding goodwill and intangible assets)	$ 23,708	18,854
All other countries
Revenue and Long-lived Assets by Geography
Revenue	1,823,492	1,738,141	$ 1,620,619
Long-lived assets (excluding goodwill and intangible assets)	$ 27,315	$ 14,985