Business Combinations - Contingent Consideration Rollforward (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Contingent Consideration
Balance at December 31, 2022			$ 17,300,000
Acquired contingent consideration liabilities			2,900,000
Payment of contingent consideration			(4,400,000)
Balance at September 30, 2023	$ 7,000,000.0		7,000,000.0		$ 17,300,000
SES
Contingent Consideration
Balance at December 31, 2022			16,300,000
(Decrease) increase in fair value of contingent consideration liabilities	(2,300,000)	$ (900,000)	(9,300,000)	$ (1,700,000)
Acquired contingent consideration liabilities			0
Payment of contingent consideration			0
Balance at September 30, 2023	7,000,000.0		7,000,000.0		16,300,000
BIG
Contingent Consideration
Balance at December 31, 2022			1,000,000.0
(Decrease) increase in fair value of contingent consideration liabilities	0	$ (800,000)	700,000	$ (1,000,000.0)	0
Acquired contingent consideration liabilities			0
Payment of contingent consideration			(1,700,000)
Balance at September 30, 2023	0		0		1,000,000.0
MP
Contingent Consideration
Balance at December 31, 2022			0
(Decrease) increase in fair value of contingent consideration liabilities			(200,000)
Acquired contingent consideration liabilities			2,900,000
Payment of contingent consideration			(2,700,000)
Balance at September 30, 2023	$ 0		$ 0		$ 0