Quarterly report pursuant to Section 13 or 15(d)

Redeemable Noncontrolling Interests and Equity - Schedule of Changes in Total Stockholders' Equity, Redeemable Noncontrolling Interest and Noncontrolling Interests (Details)

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Redeemable Noncontrolling Interests and Equity - Schedule of Changes in Total Stockholders' Equity, Redeemable Noncontrolling Interest and Noncontrolling Interests (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Minority Interest [Line Items]    
Balance at beginning of period $ 659,560  
Balance at beginning of period 147,139  
Balance at beginning of period 554,069  
Balance at beginning of period 105,491  
Exercise of stock options 515  
Issuance of restricted stock units, net of tax withholdings (63)  
Stock based compensation 3,848  
Offering costs paid related to initial public offering (437)  
Balance at end of period 138,049  
Contributions from noncontrolling interests 134,999  
Distributions to noncontrolling interests (6,272)  
Net income (loss) attributable to common stockholders 13,134 $ (17,995)
Other comprehensive loss, net of taxes (5,273)  
Balance at end of period 565,793  
Net income (loss) attributable to noncontrolling interest (90,937) $ (34,525)
Balance at end of period 169,378  
Net income (loss) including portion attributable to noncontrolling interest (51,706)  
Balance at end of period 735,171  
Redeemable Non Controlling Interests    
Minority Interest [Line Items]    
Balance at beginning of period 147,139  
Contributions from redeemable noncontrolling interests 19,945  
Distributions to redeemable noncontrolling interests (2,938)  
Net income (loss) attributable to redeemable noncontrolling interests (26,097)  
Balance at end of period 138,049  
Total Stockholders' Equity    
Minority Interest [Line Items]    
Balance at beginning of period 554,069  
Exercise of stock options 515  
Issuance of restricted stock units, net of tax withholdings (63)  
Stock based compensation 3,848  
Offering costs paid related to initial public offering (437)  
Net income (loss) attributable to common stockholders 13,134  
Other comprehensive loss, net of taxes (5,273)  
Balance at end of period 565,793  
Noncontrolling Interests    
Minority Interest [Line Items]    
Balance at beginning of period 105,491  
Contributions from noncontrolling interests 134,999  
Distributions to noncontrolling interests (6,272)  
Net income (loss) attributable to noncontrolling interest (64,840)  
Balance at end of period $ 169,378