COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Other Commitments [Line Items]
Unrecorded unconditional purchase obligation	$ 30,777
Loss contingency reserve	3,800
Purchase Commitments - Advertising
Other Commitments [Line Items]
Unrecorded unconditional purchase obligation	13,000
Purchase Commitment - Technology Contracts
Other Commitments [Line Items]
Unrecorded unconditional purchase obligation	6,600
Purchase Commitment - Communication Spend
Other Commitments [Line Items]
Unrecorded unconditional purchase obligation	6,100
Purchase Commitment - Background Check Services
Other Commitments [Line Items]
Unrecorded unconditional purchase obligation	$ 3,100