NET INCOME (LOSS) PER SHARE - Reconciliation used in Computing Basic and Diluted Net Income (Loss) per Share (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Weighted-average common stock outstanding, basic (in shares)	31,459	28,117
Stock options, RSU's, RSAs and ESPP (in shares)	310	360
Shares used in computation of diluted net income (loss) per share (in shares)	31,769	28,477