Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Taxes [Abstract]
Income tax expense	$ 7,016,000	$ 3,143,000	$ 8,944,000	$ 5,125,000
Effective tax rate			24.90%	24.00%
Benefit related to stock awards exercised			$ 47,000	$ 100,000