Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Summary Of Significant Accounting Policies [Line Items]

Schedule of reconciliation of restricted cash

	December 31,		December 31,
	2021		2020
	(in thousands)
Cash and cash equivalents in balance sheet	$	84,386	$	48,668
Restricted cash, current portion in balance sheet		228		187
Total cash, cash equivalents and restricted cash in statements of cash flows	$	84,614	$	48,855

Schedule of allowances for credit losses related to trade accounts receivable and other receivables

	December 31,
	2021
		(in thousands)
Beginning balance	$	4,220
Provision for credit losses		(156)
Write-offs		(1,635)
Total	$	2,429

Schedule of allowances for credit losses

	December 31,		December 31,		December 31,
	2021		2020		2019
	(in thousands)
Beginning balance	$	4,220	$	2,919	$	1,788
Cumulative-effect adjustment upon adoption of ASU 2016-13		—		404		—
Provision for credit losses		(156)		1,354		1,141
Write offs		(1,635)		(457)		(10)
Ending balance	$	2,429	$	4,220	$	2,919

Schedule of Accumulated Other Comprehensive Income (Loss)

	December 31,
	2021		2020
	(in thousands)
Beginning balance	$	4,259	$	919
Net unrealized gains (losses) on available-for-sale securities, net of tax		(6,546)		3,340
Ending balance	$	(2,287)	$	4,259

Accounting Standards Update 2020-06

Summary Of Significant Accounting Policies [Line Items]

Schedule of new accounting pronouncements and changes in accounting principle

	December 31,		ASU 2020-06		January 1,
	2020		Adoption Adjustment		2021
	(in thousands)
Liabilities
Outstanding Principal	$	287,500	$	—	$	287,500
Unamortized debt discount and issuance cost		(85,007)		76,674		(8,333)
Net carrying amount	$	202,493	$	76,674	$	279,167
Equity
Additional paid-in-capital	$	(1,411,286)	$	82,876	$	(1,328,410)
Accumulated deficit		(929,318)		6,198		(923,120)