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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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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Share-Based and Other Compensation - 2019, 2018 and 2017 Share-Based Compensation Grants (Details) - shares					1 Months Ended			2 Months Ended	12 Months Ended
	Feb. 01, 2019	Dec. 27, 2018	Feb. 14, 2018	Feb. 24, 2017	Feb. 28, 2019	Dec. 31, 2018	Feb. 28, 2017	Feb. 28, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Units (RSUs) [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		161,290					229,976	282,038
Restricted Stock Units (RSUs) [Member] \| Chief Executive Officer [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		483,871
Market measure-based Restricted Stock Units (RSUs) [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)	143,396	80,647	158,205	130,956	143,396
Market measure-based Restricted Stock Units (RSUs) [Member] \| Chief Executive Officer [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		266,130			288,378
Time-Based Restricted Stock Units (RSUs) [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		80,643					99,020	123,833		14,999	43,081
Time-Based Restricted Stock Units (RSUs) [Member] \| Chief Executive Officer [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		217,741			144,982
Forfeited in period (in shares)									10,733
2019 Performance-Based RSUs [Member] \| Chief Executive Officer [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited in period (in shares)									24,353
December 2018 Market-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)						346,777
December 2018 Market-Based RSUs [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)							130,956	158,205
Time-Based Restricted Stock Units (RSUs), 2018 Special Time-Based RSU Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		298,384
Time-Based Restricted Stock Units (RSUs), 2018 Special Time-Based RSU Grant [Member] \| Chief Executive Officer [Member] \| Executive officer share-based compensation programs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited in period (in shares)									98,844