Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]          
Beginning balance $ 875,725,000 $ 786,980,000 $ 823,116,000 $ 786,760,000  
Other comprehensive income (loss) before reclassifications     (1,828,000)    
Amounts reclassified out of accumulated other comprehensive income (loss)     (2,124,000)    
Other comprehensive income (loss) (679,000) 388,000 (3,952,000) 4,173,000  
Ending balance 902,425,000 803,844,000 902,425,000 803,844,000  
Other comprehensive income (loss) before reclassifications, tax expense     (858)    
Amounts reclassified out of accumulated other comprehensive income (loss), tax expense     (868)    
Operating Leases, Future Minimum Payments Due, Next Twelve Months         $ 82,177,000
Gains and Losses on Cash Flow Hedges          
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]          
Beginning balance     3,034,000    
Other comprehensive income (loss) before reclassifications     (1,828,000)    
Amounts reclassified out of accumulated other comprehensive income (loss)     (2,124,000)    
Other comprehensive income (loss)     (3,952,000)    
Ending balance (918,000)   (918,000)    
Defined Benefit Pension Plan          
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]          
Beginning balance     1,199,000    
Other comprehensive income (loss) before reclassifications     0    
Amounts reclassified out of accumulated other comprehensive income (loss)     0    
Other comprehensive income (loss)     0    
Ending balance 1,199,000   1,199,000    
Total Accumulated Other Comprehensive Income (Loss)          
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]          
Beginning balance 960,000 5,092,000 4,233,000 1,307,000  
Other comprehensive income (loss) (679,000) 388,000 (3,952,000) 4,173,000  
Ending balance $ 281,000 $ 5,480,000 $ 281,000 $ 5,480,000