Deferred Compensation Arrangement with Individual, Number of Employees

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- Definition

Deferred Compensation Arrangement with Individual, Unvested Equity Instruments Held by Individual

+ References

No definition available.

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- Definition

Employee Service Share-based Compensation, Combination of Employee Service Years and Employee Age for Retirement Eligibility

+ References

No definition available.

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- Definition

Employee Service Share-based Compensation, Minimum Retirement Age

+ References

No definition available.

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- Definition

Employee Service Share-based Compensation, Minimum Retirement Notification Period

+ References

No definition available.

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- Definition

Employee Service Share-based Compensation, Number of Employee Full Years of Service for Retirement Eligibility

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Aggregate number of common shares reserved for future issuance.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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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- Definition

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

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Value, after forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Incentive Award Plan - Narrative (Details)	1 Months Ended			12 Months Ended
Incentive Award Plan - Narrative (Details)	Jul. 31, 2019 USD ($)	May 31, 2019 USD ($)	Jun. 30, 2017 shares	Dec. 31, 2019 USD ($) employee $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares	Dec. 31, 2016 USD ($)
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation				$ 900,000	$ 1,100,000	$ 900,000	$ 900,000
Weighted-average grant date fair value, granted (in dollars per share) \| $ / shares				$ 47.34	$ 39.45	$ 46.67
Restricted Stock Units \| Newly Appointed Board Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, stock granted during period, value	$ 117,500
Restricted Stock Units \| Chairman of the Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, stock granted during period, value				$ 162,500
Restricted Stock Units \| All other members
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, stock granted during period, value		$ 117,500
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation				$ 12,700,000	$ 11,100,000	$ 13,100,000
Weighted-average grant date fair value, granted (in dollars per share) \| $ / shares				$ 44.08	$ 39.41	$ 48.55
Restricted stock award vesting period (in years)				5 years
Number of shares vested (in shares) \| shares				266,556	249,102
Weighted average grant date fair value, fair value (in dollars per share) \| $ / shares				$ 42.91	$ 43.64	$ 42.36
Total fair value of RSAs vested				$ 11,200,000
Total unrecognized compensation cost				$ 30,900,000
Total unrecognized compensation cost, weighted-average period (in years)				3 years 2 months 12 days
Minimum age to meet retirement qualification (under Company Plan)				50 years
Minimum combination of employee service years and employee age to meet retirement qualification (under Company Plan)				70 years
Minimum notification period of intention to retire (under Company Plan)				6 months
Number of employees holding unvested awards which will vest upon retirement \| employee				19
Number of unvested awards held by individual (in shares) \| shares				330,134
Restricted Stock Awards \| Chief Financial Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation						$ 2,400,000
Number of shares vested (in shares) \| shares			46,976
Minimum \| Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum number of full years of service to qualify for retirement (under Company Plan)				120 months
2018 Incentive Award Plan \| Select Employees and Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares) \| shares				3,500,000
Stock-based awards, number of shares available for issuance (in shares) \| shares				3,100,000