XML 87 R74.htm IDEA: XBRL DOCUMENT v3.8.0.1
Acquisition, Restructuring and Other Expense (Restructuring Accrual) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Restructuring accrual      
Restructuring accrual, beginning balance $ 2,643 $ 7,175 $ 8,254
Expenses incurred 4,250 9,736 21,671
Payments made (5,635) (14,268) (22,750)
Restructuring accrual, ending balance $ 1,258 $ 2,643 $ 7,175