Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Statement of Partners' Capital [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	109,457,941	100,180,872
Common stock, shares outstanding	109,386,396	100,149,453
Treasury stock, shares	71,545	31,419