Consolidated Balance Sheet - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets [Abstract]
Cash and cash equivalents	$ 133,126	$ 139,878
Short-term Investments	91,331	89,862
Accounts and other receivables	117,884	99,065
Prepaid expenses and other assets	9,664	8,222
Total current assets	352,005	337,027
Restricted Cash and Cash Equivalents	6,321	6,319
Long-Term Investments, at fair value	5,808	5,566
Property and equipment, net	73,664	72,602
Intangible assets, net	26,105	27,134
Other Long-Term Assets	16,468	16,557
Goodwill	33,327	33,045
Total assets	513,698	498,250
Liabilities and Equity [Abstract]
Accounts payable	5,262	6,059
Accrued liabilities and other current liabilities	23,365	22,864
Reserve for veterinary invoices	30,135	28,929
Deferred Revenue	110,912	92,547
Total current liabilities	169,674	150,399
Deferred Income Tax Liabilities, Net	4,477	4,705
Other liabilities	3,470	3,207
Total liabilities	177,621	158,311
Common stock	0	0
Preferred Stock	0	0
Additional paid-in capital	446,975	439,007
Accumulated other comprehensive loss	3,689	3,071
Accumulated deficit	(103,808)	(91,360)
Treasury stock, at cost	(10,779)	(10,779)
Stockholders' Equity Attributable to Parent	336,077	339,939
Total liabilities and stockholders' equity	$ 513,698	$ 498,250