Consolidated Balance Sheet - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Assets [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 85,506	$ 87,400
Short-term Investments	97,438	126,012
Accounts and Other Receivables, Net, Current	224,082	165,217
Prepaid Expense and Other Assets	14,802	12,325
Assets, Current, Total	421,828	390,954
Restricted Cash and Cash Equivalents	13,477	13,469
Marketable Securities, Noncurrent	55,119	7,061
Property, Plant and Equipment, Net	87,066	77,950
Intangible Assets, Net (Excluding Goodwill)	19,327	22,663
Other Assets, Noncurrent	21,553	17,776
Goodwill	29,526	32,709
Assets, Total	647,896	562,582
Liabilities and Equity [Abstract]
Accounts Payable, Current	7,627	8,952
Accrued Liabilities, Current	31,112	28,162
Liability for Claims and Claims Adjustment Expense	39,542	39,671
Deferred Revenue	202,504	146,911
Long-term Debt, Current Maturities	600	0
Liabilities, Current, Total	281,385	223,696
Long-term Debt, Excluding Current Maturities	53,560	0
Deferred Income Tax Liabilities, Net	2,601	2,827
Other Liabilities, Noncurrent	4,612	3,859
Liabilities, Total	342,158	230,382
Common Stock, Value, Outstanding	0	0
Preferred Stock, Value, Outstanding	0	0
Additional Paid in Capital	490,566	466,792
Accumulated Other Comprehensive Income (Loss), Net of Tax	(6,017)	3,077
Retained Earnings (Accumulated Deficit)	(162,277)	(126,890)
Treasury Stock, Value	(16,534)	(10,779)
Stockholders' Equity Attributable to Parent	305,738	332,200
Liabilities and Equity	$ 647,896	$ 562,582