Three Months
Ended March 31,

Six Months
Ended March 31,

2012

2011

2012

2011

Numerator:

Income from continuing operations

$

14,211

$

19,038

$

31,869

$

36,625

Income (loss) from discontinued operations

62

(819

)

108

(924

)

Net income

$

14,273

$

18,219

$

31,977

$

35,701

Denominator:

Basic weighted average shares outstanding

33,788

34,422

33,725

34,392

Effect of dilutive securities:

Employee stock options and unvested restricted stock units

940

1,152

913

1,108

Denominator for diluted earnings (loss) per share

34,728

35,574

34,638

35,500