Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Details)

v3.2.0.727
Share-Based Compensation (Details)
shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
shares
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
Installment_vestings
annual_performance_periods
shares
Jun. 30, 2014
USD ($)
shares
Feb. 01, 2013
shares
Jan. 31, 2013
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation, net of capitalization | $ $ 50,300 $ 26,100 $ 66,378 $ 62,013    
Share-based compensation capitalized during period | $ 18,400 2,500 20,300 4,300    
Share-based compensation, unrecognized compensation | $ 462,200   $ 462,200      
Share-based compensation, unrecognized compensation, period for recognition     2 years 6 months 1 day      
Proceeds from exercise of stock options | $ 900 2,600 $ 1,914 6,265    
Share-based compensation plan modification, incremental compensation cost | $ $ 0 $ 0 $ 0 $ 10,800    
Phantom Units [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants in Period     5,500 5,600    
1997 Stock Option Plan [Member] | Stock Options [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of Shares Authorized 5,000   5,000      
Number of Shares Granted Plan-to-Date, Net of Cancellations 5,000   5,000      
2003 Stock Incentive Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of Shares Authorized 21,000   21,000      
Number of Shares Granted Plan-to-Date, Net of Cancellations 21,000   21,000      
2011 Incentive Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of Shares Authorized 35,000   35,000   35,000 10,000
Number of Shares Granted Plan-to-Date, Net of Cancellations 26,900   26,900      
2014-2018 Long-Term Cash Incentive Program [Domain] | Phantom Units [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of consecutive annual performance periods | annual_performance_periods     5      
Number of vesting installments | Installment_vestings     3      
Percentage of award that is performance-based     100.00%      
2014-2018 Long-Term Cash Incentive Program [Domain] | Phantom Units [Member] | Senior Executive Pool [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocation percentage to Chief Executive Officer     50.00%      
Percentage of outstanding stock maximum     1.50%      
2014-2018 Long-Term Cash Incentive Program [Domain] | Minimum [Member] | Phantom Units [Member] | General Pool [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocation percentage of total shareholder value     2.00%      
2014-2018 Long-Term Cash Incentive Program [Domain] | Maximum [Member] | Phantom Units [Member] | General Pool [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocation percentage of total shareholder value     4.00%      
2014-2018 Long-Term Cash Incentive Program [Domain] | Maximum [Member] | Phantom Units [Member] | Senior Executive Pool [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocation percentage of total shareholder value     2.00%