Share-Based Compensation - Summary of Restricted Stock and Performance Units Activity (Details) - $ / shares		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restricted Stock
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1		655,914	651,448	669,102
Granted		196,821	175,047	173,970
Vested	[1]	(174,139)	(153,171)	(182,779)
Forfeitures		(6,873)	(17,410)	(8,845)
Outstanding at December 31		671,723	655,914	651,448
Restricted Stock and Performance Units (Weighted Average Grant-date Fair Value) [Abstract]
Weighted Average Grant-Date Fair Value, Outstanding at January 1		$ 117.14	$ 109.16	$ 102.55
Weighted Average Grant-Date Fair Value, Granted		134.68	145.63	134.1
Weighted Average Grant-Date Fair Value, Vested	[1]	97.86	115.33	108.59
Weighted Average Grant-Date Fair Value, Forfeitures		129.74	120.68	111.73
Weighted Average Grant-Date Fair Value, Outstanding at December 31		$ 127.15	$ 117.14	$ 109.16
Performance Units
Restricted Stock and Performance Units [Roll Forward]
Outstanding at January 1		358,449	358,092	357,417
Granted		146,331	133,017	95,236
Vested	[2]	(132,003)	(132,404)	(74,894)
Forfeitures		0	(256)	(19,667)
Outstanding at December 31		372,777	358,449	358,092
Restricted Stock and Performance Units (Weighted Average Grant-date Fair Value) [Abstract]
Weighted Average Grant-Date Fair Value, Outstanding at January 1		$ 109.89	$ 105.38	$ 103.63
Weighted Average Grant-Date Fair Value, Granted		140.09	148.71	140.47
Weighted Average Grant-Date Fair Value, Vested	[2]	117.03	136.62	134.53
Weighted Average Grant-Date Fair Value, Forfeitures		0	145.26	132.58
Weighted Average Grant-Date Fair Value, Outstanding at December 31		$ 119.22	$ 109.89	$ 105.38

[1] The total fair value of awards upon vesting for the years ended December 31, 2023, 2022, and 2021 was $22.7 million, $21.8 million, and $24.8 million, respectively.

[2] The total fair value of awards upon vesting, including dividends, for the years ended December 31, 2023, 2022, and 2021 was $19.3 million, $19.7 million, and $11.0 million, respectively. Upon vesting of the awards in 2023, 2022, and 2021, PCA issued 146,631 shares, 144,193 shares, and 81,577 shares, respectively. For 2023, 2022, and 2021, these amounts included 14,628 shares, 11,789 shares, and 6,683 shares, respectively, for dividends accrued during the vesting period.