Three Months Ended
September 30,

Nine Months Ended
September 30,

2011

2010

2011

2010

Weighted average shares used for basic EPS

30,224

31,411

30,608

31,364

Dilutive effect of stock options and other share-based awards

616

453

579

433

Dilutive effect of convertible debt

756

518

770

382

Weighted average shares used for diluted EPS

31,596

32,382

31,957

32,179

Stock options and other share-based awards not included in diluted EPS calculation because their effect would be antidilutive

129

22

103

462