Consolidated Balance Sheets Parenthetical - $ / shares	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED BALANCE SHEETS [Abstract]
Preferred stock, par value (dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000	1,000
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	350,000	350,000
Common stock, shares issued (in shares)	102,795	102,069
Common stock, outstanding (in shares)	100,870	100,126
Treasury stock, shares (in shares)	1,925	1,943