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Share and Unit-Based Plans Share and Unit-Based Plans - LTIP units granted (Details) | 6 Months Ended
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Jun. 30, 2018 $ / shares shares
LTIP Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 569,136.000
Average grant date fair value (in dollars per share) | $ / shares | $ 51.78
1/1/2018 | LTIP, Service-based | 12/31/2020 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 65,466
Average grant date fair value (in dollars per share) | $ / shares | $ 65.68
1/1/2018 | LTIP, Market-based | 12/31/2020 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 291,326
Average grant date fair value (in dollars per share) | $ / shares | $ 44.28
1/29/2018 | LTIP, Service-based | 12/31/2020 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 1,893
Average grant date fair value (in dollars per share) | $ / shares | $ 66.02
1/29/2018 | LTIP, Service-based | 2/1/2022 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 13,632
Average grant date fair value (in dollars per share) | $ / shares | $ 66.02
1/29/2018 | LTIP, Market-based | 12/31/2020 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 7,775
Average grant date fair value (in dollars per share) | $ / shares | $ 48.23
3/2/2018 | LTIP, Service-based | 3/2/2018 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 99,407
Average grant date fair value (in dollars per share) | $ / shares | $ 59.04
4/26/2018 | LTIP, Service-based | 4/26/2018 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Granted (in shares) | shares | 89,637
Average grant date fair value (in dollars per share) | $ / shares | $ 55.78

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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://www.xbrl.org/2003/role/presentationRef -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=96867065&loc=d3e5070-113901 + Details
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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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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=96867065&loc=d3e5070-113901 + Details
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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. + Details
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