Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax [Abstract]
Income tax expense	$ 4,777	$ 3,125	$ 9,245	$ 7,979
Decrease in income tax expense	10	$ (10)	(190)	$ (180)
Gross unrecognized tax benefits	$ 400		$ 400		$ 400