Revenue - Narrative (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) supplyAgreement	Dec. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Revenue	$ 481,333,000	$ 456,255,000
Number of supply agreements | supplyAgreement	2
Revenue recognized upon satisfaction of performance obligations	$ 1,600,000	47,200,000
Contract liabilities	2,256,000	1,819,000
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenue	434,000,000	415,700,000
Transferred over Time
Disaggregation of Revenue [Line Items]
Revenue	47,300,000	40,600,000
6.0 Liter Engines
Disaggregation of Revenue [Line Items]
Revenue		103,700,000
Contract liabilities	$ 0	$ 0