Income Tax Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Net interest and penalties expense	$ 312	$ (42)	$ 620	$ 259
Accrued interest	3,203		3,203		$ 2,849
Accrued penalties	1,746		1,746		1,681
Unrecognized tax benefits related to uncertain tax positions	122,621		122,621		121,715
The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate	$ 121,311		$ 121,311		$ 120,410

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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
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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://fasb.org/us-gaap/role/ref/legacyRef
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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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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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