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Stockholders' Equity Stockholders' Equity (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2016
USD ($)
Sep. 30, 2015
Jun. 30, 2016
USD ($)
shares
Dec. 31, 2015
shares
Equity [Abstract]        
Stock split, common stock   1.333    
Preferred stock, shares authorized     100,000,000 100,000,000
Preferred stock, shares outstanding     0 0
Redeemable noncontrolling interest change | $ $ 59.5      
Redeemable noncontrolling interest, equity, redemption value | $     $ 0.0  
Preferred stock, shares issued     0 0