Variable Interest Entities - Summary of Amounts and Classification of Assets and Liabilities of VIE (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 27,248	$ 58,824
Prepaid and other current assets	4,565	5,019
Total assets	59,683	93,682
Accounts payable	1,933	1,001
Deferred revenue	488	441
Total liabilities	27,600	48,127
VIE, Primary beneficiary
Variable Interest Entity [Line Items]
Cash and cash equivalents	1,358	1,356
Unbilled receivables	54	80
Prepaid and other current assets	32	48
Total assets	1,444	1,484
Accounts payable	5	10
Accrued liabilities	103	11
Deferred revenue	48	40
Payables to Ontrak	1,680	1,841
Total liabilities	$ 1,836	$ 1,902