Schedule 1-Parent Only Disclosures Condensed Statements of Operations and Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Statements, Captions [Line Items]
Revenue	$ 1,108,605	$ 905,179	$ 698,991
Technology and development	21,403	25,133	16,866
General and administrative	60,207	39,379	31,893
New pet acquisition expense	77,372	89,500	78,647
Gain (loss) from investment in joint venture	(219)	(253)	(171)
Operating loss	(40,659)	(43,001)	(35,196)
Interest expense	12,077	4,267	10
Other expense (income), net	7,701	3,072	(14)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	(37,989)	(54,050)	(35,524)
Parent Company
Condensed Financial Statements, Captions [Line Items]
Veterinary invoice expense	253	4,144	4,538
Other costs of revenue	240	2,340	2,610
Technology and development	1,507	4,930	3,130
General and administrative	5,345	16,346	11,714
New pet acquisition expense	806	9,351	9,177
Depreciation and amortization	494	289	473
Total expenses	8,645	37,400	31,642
Gain (loss) from investment in joint venture	(237)	(192)	(33)
Operating loss	(8,882)	(37,592)	(31,675)
Interest expense	11,998	4,255	(2)
Other expense (income), net	14,442	8,047	5,755
Loss before equity in undistributed earnings of subsidiaries	(6,438)	(33,800)	(25,918)
Income tax benefit	15,766	14,544	12,272
Equity (loss) in undistributed earnings of subsidiaries	(54,021)	(25,416)	(21,884)
Net loss	(44,693)	(44,672)	(35,530)
Other comprehensive income (loss) of subsidiaries	6,704	(9,378)	6
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ (37,989)	$ (54,050)	$ (35,524)