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Income Taxes Tax Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingencies [Abstract]
Unrecognized Tax Benefits	$ 342	$ 3,970	$ 4,175	$ 778
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	0	0	3,364
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	0	146	293
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	(3,602)	(135)	(10)
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	(26)	216	110
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ 0	$ 0	$ (140)

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- Definition

Income Tax Contingencies [Abstract]

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 10B
-URI http://asc.fasb.org/extlink&oid=120406818&loc=SL37586934-109318

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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