CONDENSED CONSOLIDATED AND COMBINED BALANCE SHEETS (Parenthetical) (Unaudited) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury stock, shares	78,563	36,739
Common Stock, Class A
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	600,000,000	600,000,000
Common stock, shares issued	108,865,759	93,937,947
Common stock, shares outstanding	108,787,196	93,901,208
Common Stock, Class B
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	32,145,296	32,145,296
Common stock, shares outstanding	32,145,296	32,145,296