XML 63 R46.htm IDEA: XBRL DOCUMENT v3.10.0.1
Merger and Other Acquisition Expenses Merger and Other Acquisition Expenses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Merger related expenses      
Transaction $ 6,658 $ 0 $ 18,702
Severance and retention 137 3,897 15,229
Other 848 5,165 2,739
Total merger related expenses 7,643 9,062 36,670
Other Acquisition Costs [Abstract]      
Acquisition related costs, income tax benefit     3,900
Employee Severance      
Other Acquisition Costs [Abstract]      
Payments for restructuring 1,400 7,400 10,400
Restructuring reserve $ 0 $ 1,300 $ 4,800