Share-Based Compensation - Stock Options and Restricted Stock Award Activity (Details)	3 Months Ended
Mar. 31, 2021 $ / shares shares
Number of Awards
Beginning balance (in shares) \| shares	199,764
Granted (in shares) \| shares	0
Vested/Exercised (in shares) \| shares	0
Forfeitures (in shares) \| shares	0
Ending balance (in shares) \| shares	199,764
Weighted Average Exercise Price
Beginning balance (in dollars per share) \| $ / shares	$ 33.56
Granted (in dollars per share) \| $ / shares	0
Vested/Exercised (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	0
Ending balance (in dollars per share) \| $ / shares	$ 33.56
Time-Based Restricted Stock Units
Number of Awards
Beginning balance (in shares) \| shares	109,920
Granted (in shares) \| shares	0
Vested/Exercised (in shares) \| shares	0
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	109,920
Weighted Average Fair Value at Grant Date
Beginning balance (in dollars per share) \| $ / shares	$ 28.20
Granted (in dollars per share) \| $ / shares	0
Vested/Exercised (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	0
Ending balance (in dollars per share) \| $ / shares	$ 28.20
Performance-Based Restricted Stock Units
Number of Awards
Beginning balance (in shares) \| shares	0
Granted (in shares) \| shares	99,289
Vested/Exercised (in shares) \| shares	0
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	99,289
Weighted Average Fair Value at Grant Date
Beginning balance (in dollars per share) \| $ / shares	$ 0
Granted (in dollars per share) \| $ / shares	33.44
Vested/Exercised (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	0
Ending balance (in dollars per share) \| $ / shares	$ 33.44

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

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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

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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No definition available.

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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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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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No definition available.

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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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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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No definition available.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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No definition available.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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Number of share options (or share units) exercised during the current period.

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Share-Based Compensation - Stock Options and Restricted Stock Award Activity (Details)	3 Months Ended
	Mar. 31, 2021 $ / shares shares
Number of Awards
Beginning balance (in shares) \| shares	199,764
Granted (in shares) \| shares	0
Vested/Exercised (in shares) \| shares	0
Forfeitures (in shares) \| shares	0
Ending balance (in shares) \| shares	199,764
Weighted Average Exercise Price
Beginning balance (in dollars per share) \| $ / shares	$ 33.56
Granted (in dollars per share) \| $ / shares	0
Vested/Exercised (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	0
Ending balance (in dollars per share) \| $ / shares	$ 33.56
Time-Based Restricted Stock Units
Number of Awards
Beginning balance (in shares) \| shares	109,920
Granted (in shares) \| shares	0
Vested/Exercised (in shares) \| shares	0
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	109,920
Weighted Average Fair Value at Grant Date
Beginning balance (in dollars per share) \| $ / shares	$ 28.20
Granted (in dollars per share) \| $ / shares	0
Vested/Exercised (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	0
Ending balance (in dollars per share) \| $ / shares	$ 28.20
Performance-Based Restricted Stock Units
Number of Awards
Beginning balance (in shares) \| shares	0
Granted (in shares) \| shares	99,289
Vested/Exercised (in shares) \| shares	0
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	99,289
Weighted Average Fair Value at Grant Date
Beginning balance (in dollars per share) \| $ / shares	$ 0
Granted (in dollars per share) \| $ / shares	33.44
Vested/Exercised (in dollars per share) \| $ / shares	0
Forfeited (in dollars per share) \| $ / shares	0
Ending balance (in dollars per share) \| $ / shares	$ 33.44