Income Taxes (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Deferred tax assets, valuation allowance	$ 0	$ 0
U.S. Federal statutory income tax rate	21.00%	21.00%	35.00%
U.S. Federal statutory income tax rate after the Tax Cuts And Jobs Act Of 2017 becomes effective		21.00%
Income tax benefit from Tax Cuts And Jobs Act of 2017	$ 0	$ 0	$ 5,342
Diluted per share impact of income tax benefit from Tax Cuts And Jobs Act of 2017			$ 2.82