Segment and Geographic Location Information - Reconciliation of Segment Measure to Net Loss (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022		Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Total		$ 23,303	$ 18,373	[1]	$ 61,097	$ 51,337	[1]
Interest expense, net		(2,089)	(1,400)		(5,507)	(4,010)
Income tax (expense) benefit		(1,324)	208		(2,842)	(1,892)
Depreciation and amortization		(11,863)	(11,504)		(33,816)	(35,928)
Stock-based compensation		(11,484)	(11,018)		(35,609)	(32,375)
Start-up losses and investment in new services			(1,278)			(2,949)
Acquisition costs		(1,499)	(368)		(4,970)	(1,354)
Fair value changes in financial instruments		(806)	1,808		(1,814)	4,664
Fair value changes in business acquisition contingencies		(459)	(59)		(414)	3,472
Expenses related to financing transactions		(3)			(7)	(7)
Discontinuing Specialty Lab	[2]	(1,302)			(5,321)
Other gains (losses) and (expenses)		1	(482)	[3]	(215)	(1,965)	[3]
Net loss		$ (7,525)	(5,720)		$ (29,418)	(21,007)
Discontinuing Specialty Lab
Segment Reporting Information [Line Items]
Total			$ (500)			$ (100)

[1] Includes the add back of start-up losses and investment in new services of $1.3 million and $2.9 million for the three and nine months ended September 30, 2022, respectively.

[2] Amounts consist of operating losses before depreciation related to the Discontinuing Specialty Lab.

[3] Amounts include costs associated with the closing of a lab.