Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Weighted average shares basic and diluted

For the years ended December 31, 2012, 2011 and 2010, basic and diluted weighted average shares were as follows (in thousands):

	2012	2011	2010
Weighted average shares—basic	104,117	103,651	101,440
Dilutive potential common shares—stock options	8	—	—
Weighted average shares—diluted	104,125	103,651	101,440
Weighted average anti-dilutive stock options	4,315	5,836	6,460