Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Mar. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	375,000,000	375,000,000
Common stock, shares issued	84,590,000	80,816,000
Common stock, shares outstanding	84,590,000	80,816,000