Quarterly report pursuant to Section 13 or 15(d)

Income Tax - (Details)

v3.8.0.1
Income Tax - (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Dec. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Income Tax      
Accrual of state income taxes, net of federal tax benefit $ 0.4    
Effective tax rate (as a percent)   23.40% 32.00%
U.S. statutory tax rate (as a percent) 34.00% 21.00%