Stock Incentive Compensation and Employee Benefit Plans - Equity Compensation Other than Options (Details) - $ / shares	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Settled Restricted Stock Unit (CSRSUs)
Number of Shares
Nonvested, beginning balance (in shares)	0	18,481	63,744
Awards granted (in shares)		0	0
Awards vested (in shares)		(18,481)	(44,734)
Awards forfeited (in shares)		0	(529)
Nonvested, ending balance (in shares)		0	18,481
Performance Shares
Number of Shares
Nonvested, beginning balance (in shares)	141,068	151,714	144,847
Awards granted (in shares)	69,548	55,876	65,840
Awards vested (in shares)	0	(49,792)	(48,997)
Awards forfeited (in shares)	(19,352)	(16,730)	(9,976)
Nonvested, ending balance (in shares)	191,264	141,068	151,714
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 163.98	$ 140.96	$ 94.70
Awards granted (in usd per share)	145.49	162.61	170.40
Awards vested (in usd per share)	0	130.73	61.48
Awards forfeited (in usd per share)	0	0	0
Nonvested, ending balance (in usd per share)	$ 159.07	$ 163.98	$ 140.96
Total Restricted Stock Awards
Number of Shares
Nonvested, beginning balance (in shares)	643,933	613,407	531,866
Awards granted (in shares)	367,608	263,077	319,862
Awards vested (in shares)	(254,935)	(217,775)	(223,804)
Awards forfeited (in shares)	(22,795)	(14,776)	(14,517)
Nonvested, ending balance (in shares)	733,811	643,933	613,407
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 153.32	$ 143.54	$ 139.94
Awards granted (in usd per share)	143.92	167.71	145.82
Awards vested (in usd per share)	148.83	142.77	138.47
Awards forfeited (in usd per share)	149.01	158.97	140.11
Nonvested, ending balance (in usd per share)	$ 150.31	$ 153.32	$ 143.54
Employee Restricted Stock Awards
Number of Shares
Nonvested, beginning balance (in shares)	623,332	592,747	510,860
Awards granted (in shares)	354,887	252,625	309,892
Awards vested (in shares)	(242,628)	(207,264)	(213,488)
Awards forfeited (in shares)	(22,795)	(14,776)	(14,517)
Nonvested, ending balance (in shares)	712,796	623,332	592,747
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 153.02	$ 143.14	$ 139.91
Awards granted (in usd per share)	143.86	167.92	145.03
Awards vested (in usd per share)	148.30	142.52	138.35
Awards forfeited (in usd per share)	149.01	158.97	140.11
Nonvested, ending balance (in usd per share)	$ 150.19	$ 153.02	$ 143.14
Non-Employee Director Restricted Stock Awards
Number of Shares
Nonvested, beginning balance (in shares)	20,601	20,660	21,006
Awards granted (in shares)	12,721	10,452	9,970
Awards vested (in shares)	(12,307)	(10,511)	(10,316)
Awards forfeited (in shares)	0	0	0
Nonvested, ending balance (in shares)	21,015	20,601	20,660
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 162.60	$ 155.03	$ 140.79
Awards granted (in usd per share)	145.77	162.61	170.40
Awards vested (in usd per share)	159.20	147.72	141.12
Awards forfeited (in usd per share)	0	0	0
Nonvested, ending balance (in usd per share)	$ 154.40	$ 162.60	$ 155.03

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-Subparagraph (c)(2)(i)
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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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