Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 22,415	$ 618	$ 787
Additions based on tax positions related to the current year	11,598	1,766
Additions based on tax positions related to prior years	12,013	20,649
Reductions based on tax positions related to prior years	(1,566)	(155)
Reductions as a result of a lapse in statute of limitations	(59)	(463)	(169)
Balance at ending of year	$ 44,401	$ 22,415	$ 618

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 unrecognized tax benefits.

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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 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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