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Stock Incentive Compensation and Employee Benefit Plans (Equity Compensation Other than Options) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Settled Restricted Stock Unit (CSRSUs)
Number of Shares
Nonvested, beginning balance (in shares)	18,481	63,744	146,917
Awards granted (in shares)	0	0	0
Awards vested (in shares)	(18,481)	(44,734)	(80,012)
Awards forfeited (in shares)	0	(529)	(3,161)
Nonvested, ending balance (in shares)	0	18,481	63,744
Performance Shares
Number of Shares
Nonvested, beginning balance (in shares)	151,714	144,847	152,451
Awards granted (in shares)	55,876	65,840	58,050
Awards vested (in shares)	(49,792)	(48,997)	(21,730)
Awards forfeited (in shares)	(16,730)	(9,976)	(43,924)
Nonvested, ending balance (in shares)	141,068	151,714	144,847
Weighted Average  Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 140.96	$ 94.70	$ 57.21
Awards granted (in usd per share)	162.61	170.40	146.1
Awards vested (in usd per share)	130.73	61.48	49.9
Awards forfeited (in usd per share)	0	0	0
Nonvested, ending balance (in usd per share)	$ 163.98	$ 140.96	$ 94.70
Employee Restricted Stock Awards
Number of Shares
Nonvested, beginning balance (in shares)	592,747	510,860	447,740
Awards granted (in shares)	252,625	309,892	242,832
Awards vested (in shares)	(207,264)	(213,488)	(165,245)
Awards forfeited (in shares)	(14,776)	(14,517)	(14,467)
Nonvested, ending balance (in shares)	623,332	592,747	510,860
Weighted Average  Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 143.14	$ 139.91	$ 130.37
Awards granted (in usd per share)	167.92	145.03	146.92
Awards vested (in usd per share)	142.52	138.35	124.71
Awards forfeited (in usd per share)	158.97	140.11	136.16
Nonvested, ending balance (in usd per share)	$ 153.02	$ 143.14	$ 139.91
Non-Employee Director Restricted Stock Awards
Number of Shares
Nonvested, beginning balance (in shares)	20,660	21,006	22,534
Awards granted (in shares)	10,452	9,970	11,444
Awards vested (in shares)	(10,511)	(10,316)	(12,972)
Awards forfeited (in shares)	0	0	0
Nonvested, ending balance (in shares)	20,601	20,660	21,006
Weighted Average  Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 155.03	$ 140.79	$ 132.29
Awards granted (in usd per share)	162.61	170.40	147.43
Awards vested (in usd per share)	147.72	141.12	131.88
Awards forfeited (in usd per share)	0	0	0
Nonvested, ending balance (in usd per share)	$ 162.60	$ 155.03	$ 140.79
Total Restricted Stock Awards
Number of Shares
Nonvested, beginning balance (in shares)	613,407	531,866	470,274
Awards granted (in shares)	263,077	319,862	254,276
Awards vested (in shares)	(217,775)	(223,804)	(178,217)
Awards forfeited (in shares)	(14,776)	(14,517)	(14,467)
Nonvested, ending balance (in shares)	643,933	613,407	531,866
Weighted Average  Grant Date Fair Value
Nonvested, beginning balance (in usd per share)	$ 143.54	$ 139.94	$ 130.46
Awards granted (in usd per share)	167.71	145.82	146.94
Awards vested (in usd per share)	142.77	138.47	125.23
Awards forfeited (in usd per share)	158.97	140.11	136.16
Nonvested, ending balance (in usd per share)	$ 152.32	$ 143.54	$ 139.94

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- Definition

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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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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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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