Share-Based Compensation - Summary of Restricted Stock and Performance Unit Award Activity (Details)	6 Months Ended
	Jun. 30, 2024 $ / shares shares
Restricted Stock
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1, 2024 | shares	671,723
Granted | shares	175,956
Vested | shares	(197,829)	[1]
Forfeitures | shares	(2,776)
Outstanding at June 30, 2024 | shares	647,074
Restricted Stock and Performance Units (Weighted Average Grant-date Fair Value)
Weighted Average Grant-Date Fair Value, Outstanding at January 1, 2024 | $ / shares	$ 127.15
Weighted Average Grant-Date Fair Value, Granted | $ / shares	176.6
Weighted Average Grant-Date Fair Value, Vested | $ / shares	101.27	[1]
Weighted Average Grant-Date Fair Value, Forfeitures | $ / shares	140.65
Weighted Average Grant-Date Fair Value, Outstanding at June 30, 2024 | $ / shares	$ 144.9
Performance Units
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1, 2024 | shares	372,777
Granted | shares	129,923
Vested | shares	(139,984)	[1]
Forfeitures | shares	0
Outstanding at June 30, 2024 | shares	362,716
Restricted Stock and Performance Units (Weighted Average Grant-date Fair Value)
Weighted Average Grant-Date Fair Value, Outstanding at January 1, 2024 | $ / shares	$ 119.22
Weighted Average Grant-Date Fair Value, Granted | $ / shares	189.01
Weighted Average Grant-Date Fair Value, Vested | $ / shares	182.64	[1]
Weighted Average Grant-Date Fair Value, Forfeitures | $ / shares	0
Weighted Average Grant-Date Fair Value, Outstanding at June 30, 2024 | $ / shares	$ 119.74

[1] Upon payout of the performance unit awards that vested during the period, PCA issued 152,196 shares, which included 12,212 shares for dividends accrued during the performance period.