Restatement (Unaudited) - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 367,670	$ 116,391	$ 17,682	$ 19,133	$ 108,441
Restricted cash		0
Accounts receivable, net	236,009	170,108	149,638	124,229	118,694
Inventories, net	205,653	173,126	137,666	124,705	118,459
Income tax receivables	9,052	7,482	7,922	4,155	17,158
Prepaid expenses and other	33,649	18,193	11,597	15,639	12,423
Total current assets	852,033	485,300	324,505	287,861	375,175
Property, plant and equipment, net	10,692	10,202	9,763	9,740	9,774
Goodwill	69,727	69,727	69,727	69,727	69,727
Other intangible assets, net	174,753	180,630	186,507	192,383	198,260
Other assets	26,429	24,405	26,109	25,873	3,088
Total assets	1,142,979	770,264	616,611	585,584	656,024
Current Liabilities
Accounts payable	91,392	84,703	81,377	71,823	82,755
Accounts payable - related party	610	610	610	2,608	2,232
Accrued expenses and other	38,494	31,256	19,129	34,551	29,164
Accrued warranty reserve	3,192	3,025	2,968	3,098	3,049
Income tax payable	60	629	0	10,881	8,814
Deferred revenue	99,575	81,347	51,458	89,880	149,821
Current portion of contingent consideration	1,773	2,168	1,908	9,567	8,955
Current portion of term loan	4,300	4,300	4,300	4,300	4,313
Other current liabilities	5,909	6,457	6,379	6,288	0
Total current liabilities	245,305	214,495	168,129	232,996	289,103
Long-term liabilities
Deferred tax liability	0	6,078	12,576	13,005	13,114
Contingent consideration, net of current portion	12,804	10,784	10,108	10,272	10,736
Other long-term liabilities	5,557	2,953	4,273	6,055	0
Long-term debt, net of current portion, debt discount and issuance costs	711,056	299,212	493,945	391,682	423,970
Total long-term liabilities	729,417	319,027	520,902	421,014	447,820
Total liabilities	974,722	533,522	689,031	654,010	736,923
Commitments and contingencies (Note 12)
Temporary equity, carrying amount, attributable to parent	237,462	235,278	0		0
Stockholders’ deficit
Preferred stock, value, issued	0	0	0	0	0
Common stock, value, issued	135	135	127	127	127
Additional paid-in capital	202,562	251,330	149,893	148,370	140,473
Accumulated deficit	(271,902)	(250,001)	(222,440)	(216,923)	(221,499)
Total stockholders’ deficit	(69,205)	1,464	(72,420)	(68,426)	(80,899)	$ 305,151
Total liabilities, redeemable perpetual preferred stock and stockholders’ (deficit)	$ 1,142,979	770,264	616,611	585,584	656,024
Previously Reported
Current assets
Cash and cash equivalents		116,391	17,682	19,133
Restricted cash		0
Accounts receivable, net		177,462	153,610	121,921
Inventories, net		173,126	137,666	124,705
Income tax receivables		6,453	9,657	4,155
Prepaid expenses and other		18,193	11,597	15,639
Total current assets		491,625	330,212	285,553
Property, plant and equipment, net		10,202	9,763	9,740
Goodwill		69,727	69,727	69,727
Other intangible assets, net		180,630	186,507	192,383
Other assets		24,405	26,109	25,873
Total assets		776,589	622,318	583,276
Current Liabilities
Accounts payable		84,703	81,377	71,823
Accounts payable - related party		610	610	2,608
Accrued expenses and other		31,256	19,129	34,551
Accrued warranty reserve		3,025	2,968	3,098
Income tax payable		629	0	10,224
Deferred revenue		81,347	51,458	89,880
Current portion of contingent consideration		2,168	1,908	9,567
Current portion of term loan		4,300	4,300	4,300
Other current liabilities		6,457	6,379	6,288
Total current liabilities		214,495	168,129	232,339
Long-term liabilities
Deferred tax liability		6,583	14,472	13,043
Contingent consideration, net of current portion		10,784	10,108	10,272
Other long-term liabilities		2,953	4,273	6,055
Long-term debt, net of current portion, debt discount and issuance costs		299,212	493,945	391,682
Total long-term liabilities		319,532	522,798	421,052
Total liabilities		534,027	690,927	653,391
Commitments and contingencies (Note 12)
Temporary equity, carrying amount, attributable to parent		235,278	0		0
Stockholders’ deficit
Preferred stock, value, issued		0	0	0
Common stock, value, issued		135	127	127
Additional paid-in capital		251,330	149,893	148,370
Accumulated deficit		(244,181)	(218,629)	(218,612)
Total stockholders’ deficit		7,284	(68,609)	(70,115)	$ (80,899)
Total liabilities, redeemable perpetual preferred stock and stockholders’ (deficit)		776,589	622,318	583,276
Revision of Prior Period, Error Correction, Adjustment
Current assets
Cash and cash equivalents
Restricted cash
Accounts receivable, net		(7,354)	(3,972)	2,308
Inventories, net
Income tax receivables		1,029	(1,735)
Prepaid expenses and other
Total current assets		(6,325)	(5,707)	2,308
Property, plant and equipment, net
Goodwill
Other intangible assets, net
Other assets
Total assets		(6,325)	(5,707)	2,308
Current Liabilities
Accounts payable
Accounts payable - related party
Accrued expenses and other
Accrued warranty reserve
Income tax payable				657
Deferred revenue
Current portion of contingent consideration
Current portion of term loan
Other current liabilities
Total current liabilities		0	0	657
Long-term liabilities
Deferred tax liability		(505)	(1,896)	(38)
Contingent consideration, net of current portion
Other long-term liabilities
Long-term debt, net of current portion, debt discount and issuance costs
Total long-term liabilities		(505)	(1,896)	(38)
Total liabilities		(505)	(1,896)	619
Commitments and contingencies (Note 12)
Temporary equity, carrying amount, attributable to parent
Stockholders’ deficit
Preferred stock, value, issued
Common stock, value, issued
Additional paid-in capital
Accumulated deficit		(5,820)	(3,811)	1,689
Total stockholders’ deficit		(5,820)	(3,811)	1,689
Total liabilities, redeemable perpetual preferred stock and stockholders’ (deficit)		$ (6,325)	$ (5,707)	$ 2,308