Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Accumulated Other Comprehensive Income - Reclassifications out of AOCI (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Jun. 30, 2020
Jun. 30, 2019
Derivatives                
Interest expense $ 8,082     $ 10,508     $ 26,935 $ 31,068
Income before income tax (4,360)     18,413     (117,724) 37,031
Income taxes 6,209     (3,989)     22,672 (4,429)
Net income (loss) 1,849 $ (86,595) $ (10,306) 14,424 $ 15,194 $ 2,984 (95,052) 32,602
Prior service credit                
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                
Income before income tax 70     95     210 285
Actuarial losses                
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                
Income before income tax (2,386)     (1,066)     (7,159) (3,197)
Post-retirement benefit plans                
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                
Income before income tax (2,316)     (971)     (6,949) (2,912)
Net income (1,743)     (705)     (5,297) (2,168)
Derivatives                
Income taxes (573)     (266)     (1,652) (744)
Derivatives                
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                
Net income (330)     660     82 1,879
Derivatives | Reclassification out of Accumulated Other Comprehensive Income                
Derivatives                
Income before income tax (438)     874     108 2,489
Income taxes 108     (214)     (26) (610)
Net income (loss) (330)     660     82 1,879
Derivatives | Interest rate swap contracts | Reclassification out of Accumulated Other Comprehensive Income                
Derivatives                
Interest expense $ (438)     $ 874     $ 108 $ 2,489