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 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]        
Allocation of LTIP expense on consolidated statements of income $ 7,665 $ 5,426 $ 12,753 $ 10,282
G&A Expense [Member]
       
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]        
Allocation of LTIP expense on consolidated statements of income 7,486 5,317 12,460 9,802
Operating Expenses [Member]
       
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]        
Allocation of LTIP expense on consolidated statements of income 179 109 293 480
Equity Method [Member]
       
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]        
Allocation of LTIP expense on consolidated statements of income 4,743 3,782 8,359 6,618
Liability Method [Member]
       
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]        
Allocation of LTIP expense on consolidated statements of income 2,922 1,644 4,394 3,664
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   0   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   0   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   0   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   3,196   5,326
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   2,120   3,103
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   1,076   2,223
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 2,639 1,196 4,585 2,688
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 1,022 826 2,044 1,707
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 1,617 370 2,541 981
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 3,500 931 5,229 1,846
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 2,195 733 3,376 1,459
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 1,305 198 1,853 387
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 1,228   2,132  
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 1,228   2,132  
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   0  
Retention Awards [Member]
       
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]        
Allocation of LTIP expense on consolidated statements of income 298 103 807 228
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 298 103 807 228
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 $ 0 $ 0