CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
EQUITY
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,090,000	1,090,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	273,910,000	273,910,000
Common stock, shares issued (in shares)	55,007,983	51,143,723
Common stock, shares outstanding (in shares)	55,007,983	51,143,723
Benefit pension plan, net of income tax benefits	$ 6,000,000	$ 6,000,000
Amounts reclassified out of Accumulated other comprehensive loss	$ 0
Gain from reclassification of currency translation adjustments		$ 22,000,000