STOCK-BASED COMPENSATION - Summary of Total Stock-based Compensation Cost from Stock Options, RSUs, ESPP, RSAs, and Sales of Stock (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 48,175	$ 44,809	$ 137,532	$ 132,234
Stock-based compensation capitalized for software development and cloud-computing arrangement implementation costs	3,599	2,706	9,553	6,989
Total stock-based compensation cost	51,774	47,515	147,085	139,223
Cost of revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,079	1,931	6,015	5,509
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	13,924	14,310	42,408	41,781
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	18,311	16,347	49,657	52,395
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 13,861	$ 12,221	$ 39,452	$ 32,549