Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]          
Beginning balance $ 852,286 $ 768,717 $ 823,116 $ 786,760  
Other comprehensive income (loss) before reclassifications     (1,988)    
Amounts reclassified out of accumulated other comprehensive income (loss)     (1,285)    
Other comprehensive income (loss) (1,412) 871 (3,273) 3,785  
Ending balance 875,725 786,980 875,725 786,980  
Other comprehensive income (loss) before reclassifications, tax expense     (871)    
Amounts reclassified out of accumulated other comprehensive income (loss), tax expense     (525)    
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     (1,988)    
Amounts reclassified out of accumulated other comprehensive income (loss)     (1,285)    
Other comprehensive income (loss)     (3,273)    
Ending balance (239)   (239)    
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   1,199    
Total Accumulated Other Comprehensive Income (Loss)          
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]          
Beginning balance 2,372 4,221 4,233 1,307  
Other comprehensive income (loss) (1,412) 871 (3,273) 3,785  
Ending balance $ 960 $ 5,092 $ 960 $ 5,092