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Equity-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Jan. 01, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Partnership grant units     168,600,140
Compensation expense in relation to equity-based awards $ 79,840 $ 272,335  
Tax benefits in relation to equity-based awards 8,300 $ 23,600  
Estimated unrecognized compensation expense related to unvested awards $ 1,000,000    
Weighted-average period for recognized compensation expense related to unvested awards, years 4 years 10 months 24 days    
Total vested and unvested outstanding units 1,192,401,538    
Phantom Share Units (PSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total outstanding unvested phantom units 35,844    
Equity-Based Awards With Performance Conditions      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation expense in relation to equity-based awards $ 4,200    
Performance period of equity-based awards, in years 4 years