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Share-Based Compensation - Summary of Activity of the Outstanding Share-Based Compensation Awards (Details)
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Performance Unit Incentive Plan (“PUP”)  
Summary of activity of the outstanding share-based compensation awards  
Beginning Balance, Shares | shares 214,904
Granted, Shares | shares 84,898
Vested, Shares | shares (67,866)
Forfeited, Shares | shares (595)
Ending Balance, Shares | shares 231,341
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Beginning Balance, Weighted-Average Grant Date Fair Value | $ / shares $ 52.53
Granted, Weighted-Average Grant Date Fair Value | $ / shares 56.15
Vested, Weighted-Average Grant Date Fair Value | $ / shares 47.43
Forfeited, Weighted-Average Grant Date Fair Value | $ / shares 58.79
Ending Balance, Weighted-Average Grant Date Fair Value | $ / shares $ 55.34
Restricted Stock  
Summary of activity of the outstanding share-based compensation awards  
Beginning Balance, Shares | shares 136,123
Granted, Shares | shares 47,742
Vested, Shares | shares (61,475)
Forfeited, Shares | shares (1,494)
Ending Balance, Shares | shares 120,896
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Beginning Balance, Weighted-Average Grant Date Fair Value | $ / shares $ 52.66
Granted, Weighted-Average Grant Date Fair Value | $ / shares 55.91
Vested, Weighted-Average Grant Date Fair Value | $ / shares 50.02
Forfeited, Weighted-Average Grant Date Fair Value | $ / shares 54.39
Ending Balance, Weighted-Average Grant Date Fair Value | $ / shares $ 55.26
Restricted Stock Units  
Summary of activity of the outstanding share-based compensation awards  
Beginning Balance, Shares | shares 11,623
Granted, Shares | shares 3,391
Vested, Shares | shares (2,815)
Forfeited, Shares | shares (760)
Ending Balance, Shares | shares 11,439
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Beginning Balance, Weighted-Average Grant Date Fair Value | $ / shares $ 52.17
Granted, Weighted-Average Grant Date Fair Value | $ / shares 55.24
Vested, Weighted-Average Grant Date Fair Value | $ / shares 47.45
Forfeited, Weighted-Average Grant Date Fair Value | $ / shares 56.88
Ending Balance, Weighted-Average Grant Date Fair Value | $ / shares $ 53.93