Share-Based Compensation - Summary of Restricted Stock and Performance Unit Award Activity (Details)	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Restricted Stock
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1, 2023 | shares	655,914
Granted | shares	191,097
Vested | shares	(3,077)	[1]
Forfeitures | shares	(1,337)
Outstanding at March 31, 2023 | shares	842,597
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	134.72
Weighted Average Grant-Date Fair Value, Vested | $ / shares	109.71	[1]
Weighted Average Grant-Date Fair Value, Forfeitures | $ / shares	120.13
Weighted Average Grant-Date Fair Value, Outstanding at March 31, 2023 | $ / shares	$ 121.15
Performance Units
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1, 2023 | shares	358,449
Granted | shares	146,331
Vested | shares	(76,130)	[1]
Forfeitures | shares	0
Outstanding at March 31, 2023 | shares	428,650
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	132.96	[1]
Weighted Average Grant-Date Fair Value, Forfeitures | $ / shares	0
Weighted Average Grant-Date Fair Value, Outstanding at March 31, 2023 | $ / shares	$ 116.10

[1] Upon payout of the performance unit awards that vested during the period, PCA issued 83,769 shares, which included 7,639 shares for dividends accrued during the performance period.