SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for credit losses
Movement in Valuation Allowances and Reserves
Balance at beginning of period	$ 476	$ 273	$ 180
Charges to Earnings	1,428	1,834	1,245
Charges to Other Accounts	0	0	0
Deductions	(580)	(1,631)	(1,152)
Balance at end of period	1,324	476	273
Deferred tax valuation allowance
Movement in Valuation Allowances and Reserves
Balance at beginning of period	51,689	35,745	17,476
Charges to Earnings	20,858	15,946	18,269
Charges to Other Accounts	(20,524)	(2)	0
Deductions	0	0	0
Balance at end of period	52,023	51,689	35,745
Other reserves
Movement in Valuation Allowances and Reserves
Balance at beginning of period	0	3	807
Balance at end of period	$ 0	$ 0	$ 3

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of valuation and qualifying accounts and reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column B))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column E))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690

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Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.

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Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense.

+ References

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