Consolidated Balance Sheets (Parenthetical) shares in Thousands	Sep. 30, 2015 $ / shares shares
Consolidated Balance Sheets
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Common stock, Authorized shares	500,000
Common stock, shares issued	151,898
Common stock, shares outstanding	151,452
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.01
Preferred stock, Authorized shares	50,000
Preferred stock, shares issued	0
Treasury stock shares, at cost	121