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Income Tax Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Net interest and penalties expense	$ 188	$ 312	$ (42)	$ 620
Accrued interest	3,541		3,541		$ 3,432
Accrued penalties	1,408		1,408		1,645
Unrecognized tax benefits related to uncertain tax positions	135,400		135,400		135,910
The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate	$ 134,257		$ 134,257		$ 134,473

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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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-Publisher FASB
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-Section 50
-Paragraph 15A
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Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 15
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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of interest expense accrued for an underpayment of income taxes.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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-Name Accounting Standards Codification
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-Section 50
-Paragraph 15A
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