Annual report pursuant to Section 13 and 15(d)

Supplemental Cash Flow Information (Supplemental Disclosure Of Cash Flow Information) (Details)

v3.6.0.2
Supplemental Cash Flow Information (Supplemental Disclosure Of Cash Flow Information) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Cash paid during the period for:      
Income tax payments $ 68,898 $ 99,012 $ 87,787
Income tax refunds (282) (102) (482)
Interest payments 15,027 13,087 6,142
Non-cash financing activities:      
Capital expenditures incurred but paid in advance 0 0 9,100
Other Comprehensive Income (Loss), before Reclassifications, before Tax $ 3,018 $ (1,620) $ (1,581)