v2.4.0.8

Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) (Management [Member], USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | $ 5,088 | $ 4,856
G&A Expense [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 4,974 | 4,485
Operating Expenses [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 114 | 371
Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 3,616 | 2,836
Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 1,472 | 2,020
Performance Based Awards [Member] | Two Thousand Ten Awards [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income |  | 194
Performance Based Awards [Member] | Two Thousand Ten Awards [Member] | Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income |  | 121
Performance Based Awards [Member] | Two Thousand Ten Awards [Member] | Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income |  | 73
Performance Based Awards [Member] | Two Thousand Eleven Awards [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income |  | 2,130
Performance Based Awards [Member] | Two Thousand Eleven Awards [Member] | Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income |  | 983
Performance Based Awards [Member] | Two Thousand Eleven Awards [Member] | Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income |  | 1,147
Performance Based Awards [Member] | Two Thousand Twelve Awards [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 1,946 | 1,492
Performance Based Awards [Member] | Two Thousand Twelve Awards [Member] | Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 1,022 | 881
Performance Based Awards [Member] | Two Thousand Twelve Awards [Member] | Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 924 | 611
Performance Based Awards [Member] | Two Thousand Thirteen Awards [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 1,729 | 915
Performance Based Awards [Member] | Two Thousand Thirteen Awards [Member] | Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 1,181 | 726
Performance Based Awards [Member] | Two Thousand Thirteen Awards [Member] | Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 548 | 189
Performance Based Awards [Member] | Two Thousand Fourteen Awards [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 904 |
Performance Based Awards [Member] | Two Thousand Fourteen Awards [Member] | Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 904 |
Performance Based Awards [Member] | Two Thousand Fourteen Awards [Member] | Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 0 |
Retention Awards [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 509 | 125
Retention Awards [Member] | Equity Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | 509 | 125
Retention Awards [Member] | Liability Method [Member] |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |
Allocation of LTIP expense on consolidated statements of income | $ 0 | $ 0

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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