Income Taxes - (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Taxes
(Benefit) provision for income taxes	$ (1,911)		$ 2,585	$ (4,750)	$ 3,260
Effective tax rate	(39.00%)		31.20%	(27.30%)	27.10%
Federal statutory tax rate (as a percent)	21.00%		21.00%	21.00%	21.00%
Recognition of tax benefits, Current year		$ 2,200
Recognition of tax benefits, Prior years						$ 6,300
Deferred taxes due to CARES Act	$ 9,500			$ 9,500
Recognition of tax benefits, Prior years due to CARES Act				$ 4,000

This represents deferred taxes recorded during current period due to CARES Act impact.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns due to CARES Act.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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