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Stockholders' Equity (Tables)
9 Months Ended
Jun. 30, 2013
Stockholders' Equity  
Schedule of summary of stock options activity

 

 

 

Options

 

Weighted-
Average
Exercise Price

 

Options outstanding at September 30, 2011

 

2,894,547

 

$

11.55

 

Options granted

 

181,783

 

34.42

 

Options exercised

 

(1,322,387

)

11.72

 

Options canceled

 

(78,148

)

12.72

 

Options outstanding at September 30, 2012

 

1,675,795

 

13.84

 

Options granted

 

59,322

 

42.37

 

Options exercised

 

(20,776

)

10.04

 

Options canceled

 

(3,208

)

25.06

 

Options outstanding at December 31, 2012

 

1,711,133

 

14.86

 

Options granted

 

 

 

Options exercised

 

(27,479

)

10.73

 

Options canceled

 

(29,036

)

17.96

 

Options outstanding at March 31, 2013

 

1,654,618

 

14.87

 

Options granted

 

29,770

 

40.11

 

Options exercised

 

(72,573

)

12.27

 

Options canceled

 

 

 

Options outstanding at June 30, 2013

 

1,611,815

 

15.45

 

Options exercisable at June 30, 2013

 

1,202,947

 

13.29

 

 

Schedule of summary of restricted share activity

 

 

 

Restricted
Shares

 

Weighted-
Average
Fair Value

 

Unvested restricted shares at September 30, 2011

 

1,294,082

 

$

13.13

 

Restricted shares granted

 

633,647

 

34.05

 

Restricted shares vested

 

(390,068

)

12.53

 

Restricted shares canceled

 

(138,052

)

15.70

 

Unvested restricted shares at September 30, 2012

 

1,399,609

 

22.51

 

Restricted shares granted

 

679,509

 

39.48

 

Restricted shares vested

 

(342,494

)

17.62

 

Restricted shares canceled

 

(114,883

)

30.62

 

Unvested restricted shares at December 31, 2012

 

1,621,741

 

30.08

 

Restricted shares granted

 

119,711

 

34.17

 

Restricted shares vested

 

(68,518

)

32.23

 

Restricted shares canceled

 

(66,894

)

28.43

 

Unvested restricted shares at March 31, 2013

 

1,606,040

 

30.36

 

Restricted shares granted

 

26,938

 

33.87

 

Restricted shares vested

 

(23,288

)

36.73

 

Restricted shares canceled

 

(204,583

)

40.45

 

Unvested restricted shares at June 30, 2013

 

1,405,107

 

28.86