XML 60 R46.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Dec. 31, 2017
Jun. 30, 2018
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]    
Increase in unrecognized tax benefit   $ 48
Tax settlement paid $ 4,600  
AMT credit carryforward $ 57,900