Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Changes in Accumulated Other Comprehensive Loss by Component - Reclassifications (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Amounts reclassified from accumulated other comprehensive loss:    
Interest expense, net $ 5,040 $ 4,150
Tax expense (benefit) (3,262) (463)
Reclassification net of tax 10,086 297
Interest rate swap | Amount reclassified from accumulated other comprehensive income    
Amounts reclassified from accumulated other comprehensive loss:    
Interest expense, net   49
Tax expense (benefit)   (13)
Reclassification net of tax   36
Other Postretirement Benefit Liability | Amount reclassified from accumulated other comprehensive income    
Amounts reclassified from accumulated other comprehensive loss:    
Actuarial (gains) losses (77) (78)
Tax expense (benefit) 20 20
Reclassification net of tax (57) (58)
Pension Liability | Amount reclassified from accumulated other comprehensive income    
Amounts reclassified from accumulated other comprehensive loss:    
Actuarial (gains) losses   149
Tax expense (benefit)   (39)
Reclassification net of tax   $ 110
Unrealized Net Loss on Interest Rate Swap | Interest rate swap    
Amounts reclassified from accumulated other comprehensive loss:    
Interest expense, net 359  
Tax expense (benefit) (93)  
Reclassification net of tax $ 266