Share-Based Compensation - Summary of Restricted Stock and Performance Unit Award Activity (Details)	6 Months Ended
	Jun. 30, 2023 $ / shares shares
Restricted Stock
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1, 2023 | shares	655,914
Granted | shares	196,821
Vested | shares	(170,113)	[1]
Forfeitures | shares	(2,506)
Outstanding at March 31, 2023 | shares	680,116
Restricted Stock and Performance Units (Weighted Average Grant-date Fair Value) [Abstract]
Weighted Average Grant-Date Fair Value, Outstanding at January 1, 2023 | $ / shares	$ 117.14
Weighted Average Grant-Date Fair Value, Granted | $ / shares	134.68
Weighted Average Grant-Date Fair Value, Vested | $ / shares	97.33	[1]
Weighted Average Grant-Date Fair Value, Forfeitures | $ / shares	124.83
Weighted Average Grant-Date Fair Value, Outstanding at March 31, 2023 | $ / shares	$ 127.15
Performance Units
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1, 2023 | shares	358,449
Granted | shares	146,331
Vested | shares	(132,003)	[1]
Forfeitures | shares	0
Outstanding at March 31, 2023 | shares	372,777
Restricted Stock and Performance Units (Weighted Average Grant-date Fair Value) [Abstract]
Weighted Average Grant-Date Fair Value, Outstanding at January 1, 2023 | $ / shares	$ 109.89
Weighted Average Grant-Date Fair Value, Granted | $ / shares	140.09
Weighted Average Grant-Date Fair Value, Vested | $ / shares	117.03	[1]
Weighted Average Grant-Date Fair Value, Forfeitures | $ / shares	0
Weighted Average Grant-Date Fair Value, Outstanding at March 31, 2023 | $ / shares	$ 119.22

[1] Upon payout of the performance unit awards that vested during the period, PCA issued 146,631 shares, which included 14,628 shares for dividends accrued during the performance period.