Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Accumulated Other Comprehensive Income (Loss) - Reclassifications out of AOCI (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, net $ 99 $ 259 $ 177 $ 711
Interest expense 49,079 48,610 144,041 94,362
Cost of goods sold 289,270 274,680 821,342 557,748
Income (loss) before income taxes and noncontrolling interest (2,156) 13,142 1,732 53,672
Tax (expense) benefit 5,172 (3,536) 5,269 36,013
Net loss 3,016 9,606 7,001 89,685
Defined benefit and other postretirement plans        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, before tax 39 0 118 0
Reclassification, tax (6) 0 (19) 0
Reclassification, net 33 0 99 0
Amortization of prior service cost        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, before tax 20 0 60 0
Amortization of net gain (loss)        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Reclassification, before tax 19 0 58 0
Net gain (loss) from hedging activities | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income (loss) before income taxes and noncontrolling interest 107 418 126 1,146
Tax (expense) benefit (41) (159) (48) (435)
Net loss 66 259 78 711
Net gain (loss) from hedging activities | Reclassification out of Accumulated Other Comprehensive Income | Interest rate caps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense 13 (2) 22 (2)
Net gain (loss) from hedging activities | Reclassification out of Accumulated Other Comprehensive Income | Natural gas swaps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Cost of goods sold $ 94 $ 420 $ 104 $ 1,148