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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate (percent)	(6.60%)	23.20%
Income Tax Benefit	$ 1,589	$ (6,738)
pretax book income	24,014	$ 29,066
Gross unrecognized tax benefit	2,500		$ 2,200
Expected change in unrecognized tax benefits	800
Accrued interest on income taxes	900		900
Accrued penalties on income taxes, less than	$ 100		$ 100

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