Summary of Significant Accounting Policies and Other Information (Tables)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedules of Concentration of Risk, by Risk Factor

The following table presents customers individually accounting for more than 10% of the Company’s net sales:

	For the Three Months Ended March 31,
	2024		2023
Customer A	10	%	17	%
Customer B	**		13	%
Customer C	12	%	**

The following table presents customers individually accounting for more than 10% of the Company’s trade accounts receivable:

	As of March 31, 2024		As of December 31, 2023
Customer A	16	%	12	%
Customer B	**		13	%

The following table presents suppliers individually accounting for more than 10% of the Company’s purchases:

	For the Three Months Ended March 31,
	2024		2023
Supplier A	**		11	%
Supplier B	**		10	%
Supplier C	13	%	**

**Less than 10% of the total

Schedule of Inventory, Current

Inventories consisted of the following:

(in thousands) Inventories	As of March 31, 2024		As of December 31, 2023
Raw materials	$	75,672	$	68,273
Work in process	1,517		1,166
Finished goods	18,287		21,238
Total inventories	95,476		90,677
Inventory allowance	(6,676)		(5,730)
Inventories, net	$	88,800	$	84,947

Activity in the Company’s inventory allowance was as follows:

(in thousands)	For the Three Months Ended March 31,
Inventory Allowance	2024		2023
Balance at beginning of period	$	5,730	$	3,904
Charged to expense	1,018		1,004
Write-offs	(72)		(120)
Balance at end of period	$	6,676	$	4,788

Schedule of Other Accrued Liabilities

Other accrued liabilities consisted of the following:

(in thousands) Other Accrued Liabilities	As of March 31, 2024		As of December 31, 2023
Accrued product warranty	$	10,610	$	11,290
Accrued litigation *	3,787		3,929
Contract liabilities	2,766		2,741
Accrued compensation and benefits	5,425		8,469
Accrued interest expense	2,340		1,913
Other	3,866		3,657
Total	$	28,794	$	31,999

*As of March 31, 2024 and December 31, 2023 litigation reserves related to various ongoing legal matters including associated legal fees. See Note 9. Commitments and Contingencies for further information regarding the various ongoing legal matters.

Schedule of Accrued Product Warranty

Accrued product warranty activities are presented below:

(in thousands)	For the Three Months Ended March 31,
Accrued Product Warranty	2024		2023
Balance at beginning of period	$	19,263	$	21,550
Current period provision *	1,704		1,411
Changes in estimates for preexisting warranties **	144		3,850
Payments made during the period	(3,759)		(3,806)
Balance at end of period	17,352		23,005
Less: current portion	10,610		13,085
Noncurrent accrued product warranty (included with Other Noncurrent liabilities)	$	6,742	$	9,920

*Warranty costs, net of supplier recoveries, and other adjustments, were $1.5 million and $5.1 million for the three months ended March 31, 2024 and 2023, respectively. Supplier recoveries were $0.3 million and $0.1 million for the three months ended March 31, 2024 and 2023, respectively.

**Changes in estimates for preexisting warranties reflect changes in the Company’s estimate of warranty costs for products sold in prior periods. Such adjustments typically occur when claims experience deviates from historical and expected trends. During the three months ended March 31, 2024, the Company recorded a cost for changes in estimates of preexisting warranties of $0.1 million, or $0.01 per diluted share. During the three months ended March 31, 2023, the Company recorded a cost of $3.9 million, or $0.17 per diluted share.