Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income - Reclassifications out of AOCI (Details)

v3.10.0.1
Accumulated Other Comprehensive Income - Reclassifications out of AOCI (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, net $ 52 $ 34 $ 145 $ (19)
Interest expense, net 28,238 49,079 84,622 144,041
Cost of goods sold 319,703 289,270 934,088 821,342
Income (loss) before income taxes and noncontrolling interest (22,906) (2,156) (52,741) 1,732
Tax expense (benefit) 8,470 5,172 21,590 5,269
Net loss (14,436) 3,016 (31,151) 7,001
Defined benefit and other postretirement plans        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, before tax (38) (38) (74) (116)
Reclassification, tax 13 6 19 19
Reclassification, net (25) (32) (55) (97)
Amortization of prior service credit        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, before tax (40) (19) (79) (58)
Amortization of net (gain) loss        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, before tax 2 (19) 5 (58)
Net gain (loss) from hedging activities | Amount of gain (loss) reclassified from AOCI into income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income (loss) before income taxes and noncontrolling interest 101 107 265 126
Tax expense (benefit) (24) (41) (65) (48)
Net loss 77 66 200 78
Net gain (loss) from hedging activities | Amount of gain (loss) reclassified from AOCI into income | Interest rate caps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense, net 71 13 164 22
Net gain (loss) from hedging activities | Amount of gain (loss) reclassified from AOCI into income | Natural gas swaps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Cost of goods sold $ 30 $ 94 $ 101 $ 104