Segment Information - Components of Segment Revenues and Adjusted EBITDA (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Segment Revenues	$ 131,428	$ 134,680
Segment Adjusted EBITDA	16,603	16,451	[1]
Discontinuing Specialty Lab
Segment Reporting Information [Line Items]
Segment Revenues	$ 1,400	5,600
Segment Adjusted EBITDA		1,300
Start-up Losses and Investment in New Services
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA		$ 800

[1] Includes the add back of start-up losses and investment in new services of $0.8 million.