Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details)

v3.20.1
Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance $ 944,764,000 $ 823,116,000
Other comprehensive income (loss) before reclassifications 294,000  
Amounts reclassified out of accumulated other comprehensive income (loss) (566,000)  
Other comprehensive income (loss) (272,000) (1,861,000)
Ending balance 721,987,000 852,286,000
Other comprehensive income (loss) before reclassifications, tax expense 67  
Amounts reclassified out of accumulated other comprehensive income (loss), tax expense (231)  
Gains and Losses on Cash Flow Hedges    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (1,326,000)  
Other comprehensive income (loss) before reclassifications 294,000  
Amounts reclassified out of accumulated other comprehensive income (loss) (566,000)  
Other comprehensive income (loss) (272,000)  
Ending balance (1,598,000)  
Defined Benefit Pension Plan    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (736,000)  
Other comprehensive income (loss) before reclassifications 0  
Amounts reclassified out of accumulated other comprehensive income (loss) 0  
Other comprehensive income (loss) 0  
Ending balance (736,000)  
Total Accumulated Other Comprehensive Income (Loss)    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (2,062,000) 4,233,000
Other comprehensive income (loss) (272,000) (1,861,000)
Ending balance $ (2,334,000) $ 2,372,000