Quarterly report pursuant to Section 13 or 15(d)

Changes in Accumulated Other Comprehensive Loss by Component - Reclassifications (Details)

v3.21.1
Changes in Accumulated Other Comprehensive Loss by Component - Reclassifications (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Amounts reclassified from accumulated other comprehensive loss:    
Interest expense, net $ 2,975 $ 5,040
Tax expense (benefit) (77) (3,262)
Reclassification net of tax (731) 10,086
Interest rate swap | Amount reclassified from accumulated other comprehensive income    
Amounts reclassified from accumulated other comprehensive loss:    
Interest expense, net   359
Tax expense (benefit)   (93)
Reclassification net of tax   266
Other Postretirement Benefit Liability | Amount reclassified from accumulated other comprehensive income    
Amounts reclassified from accumulated other comprehensive loss:    
Actuarial (gains) losses (78) (77)
Tax expense (benefit) 20 20
Reclassification net of tax (58) $ (57)
Unrealized Net Loss on Interest Rate Swap | Interest rate swap    
Amounts reclassified from accumulated other comprehensive loss:    
Interest expense, net 1,050  
Tax expense (benefit) (273)  
Reclassification net of tax $ 777