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Equity - Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units (Detail) - shares
 1 Months Ended 9 Months Ended
May 31, 2013
Sep. 30, 2025
Sep. 30, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Beginning balance (in shares)   173,204,190 173,569,397
Issuance of class A common stock (in shares) 25,875,000 1,778  
Repurchase of class A common stock (in shares)   (2,653,583) (628,884)
Issuance of restricted class A common stock, net (in shares)   467,180 401,901
Issuance of deferred stock units (in shares)   32,165 42,338
Ending balance (in shares)   171,051,730 173,389,399
Shares forfeited (in shares)   43,832 102,484
Director      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Issuance of restricted class A common stock, net (in shares)   29,140 41,282
Deferred Stock Units      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Number of shares of restricted class A common stock outstanding (in shares)   331,611 401,802