Income Taxes (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Effective tax rate	9.60%	28.80%	6.90%	31.30%
Statutory federal income tax rate					21.00%	35.00%