Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.1
Changes in Accumulated Other Comprehensive Income (Loss) by Component - Rollforward (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at the beginning of the period $ (1,053) $ (5,495)
Other comprehensive gain (loss) before reclassifications 3,517 (213)
Amounts reclassified from accumulated other comprehensive income (loss) 721 719
Balance at the end of the period 3,185 (4,989)
Unrealized Net Gain (Loss) on Interest Rate Swap    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at the beginning of the period (3,524) (7,608)
Other comprehensive gain (loss) before reclassifications 3,517 (213)
Amounts reclassified from accumulated other comprehensive income (loss) 762 777
Balance at the end of the period 755 (7,044)
Other Postretirement Benefit Liability    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at the beginning of the period 2,471 2,113
Amounts reclassified from accumulated other comprehensive income (loss) (41) (58)
Balance at the end of the period $ 2,430 $ 2,055