Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Detail)

v3.6.0.2
Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other Comprehensive (Loss) Income $ (430) $ (3,115) $ (8,338)
Foreign Currency Translation Adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other Comprehensive (Loss) Income (626) (4,617) (4,638)
Mark to Market Adjustments for Derivatives      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other Comprehensive (Loss) Income 0 0 69
Reclassification to Interest Expense 0 0 103
Other Comprehensive (Loss) Income, Before Tax 0 0 4
Tax Benefit (Expense) 0 0 (38)
Retirement Liability Adjustment      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other Comprehensive (Loss) Income 196 1,502 (3,769)
Other Comprehensive (Loss) Income, Before Tax 301 2,311 (5,800)
Tax Benefit (Expense) $ (105) $ (809) $ 2,031