Consolidated Balance Sheets Parentheticals (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Preferred stock, par value or stated value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Common stock, par value or stated value	$ 0.01	$ 0.01
Common stock, shares authorized	395,000	395,000
Common stock, shares issued	90,689	90,689
Common stock, shares outstanding	86,475	86,475
Treasury stock, shares	4,214	4,214