Schedule 1-Parent Only Disclosures Condensed Statements of Operations and Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Technology and development	$ 25,133	$ 16,866	$ 9,947
General and administrative	39,379	31,893	21,847
New pet acquisition expense	89,500	78,647	47,837
Loss from investment in joint venture	(253)	(171)	(126)
Operating loss	(43,001)	(35,196)	(4,927)
Interest expense	4,267	10	1,381
Other expense (income), net	3,072	(14)	581
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	(54,050)	(35,524)	(3,019)
Parent Company
Condensed Financial Statements, Captions [Line Items]
Veterinary invoice expense	4,144	4,538	1,118
Other costs of revenue	2,340	2,610	468
Technology and development	4,930	3,130	1,087
General and administrative	16,346	11,714	7,055
New pet acquisition expense	9,351	9,177	2,799
Depreciation and amortization	289	473	328
Total expenses	37,400	31,642	12,855
Loss from investment in joint venture	(192)	(33)	(108)
Operating loss	(37,592)	(31,675)	(12,963)
Interest expense	4,255	(2)	1,361
Other expense (income), net	8,047	5,755	4,845
Loss before equity in undistributed earnings of subsidiaries	(33,800)	(25,918)	(9,479)
Income tax benefit	14,544	12,272	8,460
Equity (loss) in undistributed earnings of subsidiaries	(25,416)	(21,884)	(4,821)
Net loss	(44,672)	(35,530)	(5,840)
Other comprehensive income (loss) of subsidiaries	(9,378)	6	2,821
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ (54,050)	$ (35,524)	$ (3,019)