Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance $ 823,116 $ 786,760  
Other comprehensive income (loss) before reclassifications (1,387)    
Amounts reclassified out of accumulated other comprehensive income (loss) (474)    
Other comprehensive income (loss) (1,861) 2,914  
Ending balance 852,286 768,717  
Other comprehensive income (loss) before reclassifications, tax expense 582    
Amounts reclassified out of accumulated other comprehensive income (loss), tax expense 194    
Operating Leases, Future Minimum Payments Due, Next Twelve Months     $ 82,177
Gains and Losses on Cash Flow Hedges      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 3,034    
Other comprehensive income (loss) before reclassifications (1,387)    
Amounts reclassified out of accumulated other comprehensive income (loss) (474)    
Other comprehensive income (loss) (1,861)    
Ending balance 1,173    
Defined Benefit Pension Plan      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 1,199    
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    
Total Accumulated Other Comprehensive Income (Loss)      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 4,233 1,307  
Other comprehensive income (loss) (1,861) 2,914  
Ending balance $ 2,372 $ 4,221