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Share-Based Payments (RSU) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance at beginning of year (in shares)	111,901	0
Granted (in shares)	115,542
Forfeited (in shares)	(3,641)
Weighted Average Price at beginning of year	$ 32.85	$ 0
Weighted average grant date fair value, granted	32.85
Weighted average grant date fair value, forfeited	$ 34.36
Restricted Stock (RSAs)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance at beginning of year (in shares)	865,631	889,017	814,140	805,706
Granted (in shares)	299,007	405,516	306,592
Vested (in shares)	(231,805)	(268,253)	(237,146)
Forfeited (in shares)	(90,588)	(62,386)	(61,012)
Weighted Average Price at beginning of year	$ 36.38	$ 36.96	$ 36.43	$ 32.23
Weighted average grant date fair value, granted	33.64	35.08	41.47
Weighted average grant date fair value, vested	35.01	32.50	28.78
Weighted average grant date fair value, forfeited	$ 36.50	$ 37.12	$ 35.92

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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.

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- Definition

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

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- Definition

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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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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