Transition Period - Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Income from continuing operations	$ 30,581	$ 30,581	$ 2,302	$ (22,204)		$ 60,537	$ (92,295)
Loss from discontinued operations		(177)	(118)	(227)		(689)	(505)
Net (loss) income		30,404	2,184	(22,431)		59,848	(92,800)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	2,017	2,017	2,810	8,615		9,448	10,811
Provision for allowance for doubtful accounts		852	374	414		332	19
Inventory lower-of-cost-or-market/NRV adjustments		(163)	982	0		2,391	770
Stock-based compensation expense		1,172	564	6,262		3,734	619
Loss on asset dispositions		157	0	0		709	1,191
Loss on debt extinguishment		0	230	0		230	0
Deferred income taxes, net of valuation allowances		312	6,029	(7,827)		(2,008)	(10,613)
Other		(619)	329	586		(832)	(90)
Changes in operating assets and liabilities:
Trade receivables		1,841	20,265	26,906		(41,565)	(8,790)
Inventories		(16,813)	18,945	(41,774)		(9,584)	13,237
Prepaids and other assets		(5,871)	1,934	7,993		(6,682)	3,012
Income taxes receivable		4,019	(9,678)	(7,672)		(3,550)	5,181
Trade payables		2,692	(40,271)	(44,159)		21,819	(13,451)
Accrued liabilities and other liabilities, including warranty obligations		4,807	1,629	6,521		14,202	(3,677)
Net cash (used in) provided by operating activities		24,807	6,326	(66,566)		71,660	(22,573)
Cash flows from investing activities:
Acquisition of business, net of cash acquired		(37,249)	0
Purchases of property, plant and equipment		(2,739)	(1,694)	(13,050)		(9,727)	(8,952)
Net cash provided by (used in) investing activities		(39,988)	(1,694)	34,363		(24,516)	12,819
Cash flows from financing activities:
Proceeds from long-term debt		335	44,142	65,238		45,758	32,968
Payments on long-term debt		(327)	(30,286)	(49,930)		(45,101)	(50,667)
Payment of debt issuance costs		0	(1,823)	(577)		(1,842)	0
Proceeds from employee stock purchases		103	0	486		256	241
Excess tax benefit related to stock-based awards		(2,160)	(44)	(2,920)		(2,240)	(107)
Net cash provided by (used in) financing activities		(2,049)	11,989	12,716		(3,118)	(17,490)
Effect of exchange rate changes		(910)	(1,235)	(2,195)		2,824	189
Net (decrease) increase in cash, cash equivalents and restricted cash		(18,140)	15,386	(21,682)		46,850	(27,055)
Cash and cash equivalents at beginning of period		57,920	11,070	39,780	$ 26,456	11,070	38,125
Cash, cash equivalents and restricted cash at end of period	$ 18,098	39,780	26,456	18,098	$ 39,780	57,920	11,070
Supplemental disclosure of cash flow information:
Cash paid (received) for income taxes, net		(608)	43	13,983		17,300	(4,186)
Cash paid for interest		124	238	655		889	1,197
Capital expenditures incurred but not yet paid		$ 534	$ 577	$ 1,077		$ 908	$ 420