Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 3,563	$ 2,526
Decreases relating to positions taken in prior periods	(36)	(298)
Increases relating to positions taken in prior periods	0	0
Increases relating to current period	0	1,584
Decreases due to settlements with tax authorities	0	(233)
Decreases due to lapse of statute of limitations	(315)	(16)
Unrecognized tax benefits at end of year	$ 3,212	$ 3,563

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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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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