Consolidated Statement of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Statement of Cash Flows [Abstract]
Net income (loss)	$ (21,669,000)	$ 220,000
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and Amortization	6,251,000	3,104,000
Stock-based compensation expense	14,975,000	3,880,000
Other, Net	(545,000)	102,000
Increase (Decrease) in Operating Assets [Abstract]
Accounts and other receivables	(40,796,000)	(26,102,000)
Prepaid expenses and other assets	(2,092,000)	(444,000)
Accounts Payable, Accrued Liabilities, and Other Liabilities	(872,000)	516,000
Claims Reserve	6,870,000	3,264,000
Deferred revenue	33,956,000	23,234,000
Net cash provided by operating activities	(3,922,000)	7,774,000
Net Cash Provided by Investing Activities [Abstract]
Payments to Acquire Held-to-maturity Securities	(43,373,000)	(26,550,000)
Maturities of Investment Securities	30,580,000	20,804,000
Purchases of property and equipment	(5,770,000)	(3,239,000)
Payments for (Proceeds from) Other Investing Activities	(73,000)	107,000
Net cash used in investing activities	(18,636,000)	(8,878,000)
Net Cash Provided by Financing Activities [Abstract]
Proceeds from exercise of stock options	2,358,000	1,667,000
Payments Related to Tax Withholding for Share-based Compensation	(2,751,000)	(441,000)
Proceeds from Debt Financing	0	3,735,000
Repayments of Long-term Debt	0	(2,500,000)
Proceeds from (Payments for) Other Financing Activities	0	(78,000)
Net cash provided by financing activities	(393,000)	2,383,000
Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash, net	408,000	(434,000)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(22,543,000)	845,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance	146,197,000	30,568,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance	123,654,000	31,413,000
Supplemental Cash Flow Information [Abstract]
Purchases of property and equipment included in accounts payable and accrued liabilities	$ 548,000	$ 273,000