Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Accumulated Other Comprehensive Income - Reclassifications out of AOCI (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2020
Mar. 31, 2019
Derivatives            
Interest expense $ 9,613   $ 10,259   $ 18,853 $ 20,560
Income before income tax (97,661)   15,029   (113,364) 18,618
Income taxes 11,066   165   16,463 (440)
Net (loss) income (86,595) $ (10,306) 15,194 $ 2,984 (96,901) 18,178
Prior service credit            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Income before income tax 70   95   140 190
Actuarial losses            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Income before income tax (2,386)   (1,085)   (4,773) (2,131)
Post-retirement benefit plans            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Income before income tax (2,316)   (990)   (4,633) (1,941)
Net income (1,827)   (734)   (3,554) (1,463)
Derivatives            
Income taxes (489)   (256)   (1,079) (478)
Derivatives            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Net income 137   664   412 1,219
Derivatives | Reclassification out of Accumulated Other Comprehensive Income            
Derivatives            
Income before income tax 182   880   546 1,615
Income taxes (45)   (216)   (134) (396)
Net (loss) income 137   664   412 1,219
Derivatives | Interest rate swap contracts | Reclassification out of Accumulated Other Comprehensive Income            
Derivatives            
Interest expense $ 182   $ 880   $ 546 $ 1,615