XML 160 R105.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Restructuring and Other Charges - Rollforward of Accrued Liability Balance Related to Restructuring (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restructuring Charges Accrual      
Beginning balance   $ 0 $ 712
Additions for costs expensed $ 0 $ 0 1,386
Less non-cash expense     (997)
Reductions for payments     (1,101)
Ending balance     $ 0