Annual report pursuant to Section 13 and 15(d)

Changes in AOCLoss - Reclassifications (Details)

v3.3.1.900
Changes in AOCLoss - Reclassifications (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Amounts reclassified from accumulated other comprehensive loss:                      
Interest expense, net                 $ 10,895 $ 8,129 $ 8,328
Tax expense (benefit)                 22,087 22,036 7,378
Reclassification net of tax $ (15,141) $ (15,548) $ (13,104) $ (383) $ (13,031) $ (10,762) $ (14,593) $ (1,575) (43,572) (39,352) $ (11,460)
Other Postretirement Benefit Liability | Amount reclassified from accumulated other comprehensive income                      
Amounts reclassified from accumulated other comprehensive loss:                      
Actuarial (gains) losses                 (68) (398)  
Tax expense (benefit)                 24 151  
Reclassification net of tax                 (44) (247)  
Pension Liability | Amount reclassified from accumulated other comprehensive income                      
Amounts reclassified from accumulated other comprehensive loss:                      
Actuarial (gains) losses                 1,020 203  
Tax expense (benefit)                 (367) (77)  
Reclassification net of tax                 $ 653 126  
Unrealized Net Loss on Interest Rate Swap | Interest rate swap | Amount reclassified from accumulated other comprehensive income                      
Amounts reclassified from accumulated other comprehensive loss:                      
Interest expense, net                   300  
Tax expense (benefit)                   (114)  
Reclassification net of tax                   $ 186