INCOME TAXES - Deferred Income Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating loss carryforwards	$ 9,885	$ 12,099
Inventories, net	1,267	473
Warranty reserve	1,041	789
Trade receivables	483	360
Profits interest units	1,778	760
Accrued expenses	539	1,010
Transaction costs	1,211	607
Future branch taxes	(2,462)
Other	719	216
Gross deferred tax assets	14,461	16,314
Valuation allowance		(12,704)	$ (12,463)	$ (12,300)
Total deferred tax asset	14,461	3,610
Less: Foreign deferred tax benefit	(10,603)	(345)
Total domestic deferred tax asset	3,858	3,265
Deferred tax liabilities:
Intangible assets	(50,298)	(53,874)
Property and equipment, net	(5,788)	(4,120)
Prepaid expenses and other	(1,201)	(464)
Investments in partnerships	(2,914)
Total deferred tax liabilities	(60,201)	(58,458)
Net deferred tax liabilities	$ (56,343)	$ (55,193)