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SHARE-BASED COMPENSATION: (Tables)
3 Months Ended
Jun. 30, 2012
SHARE-BASED COMPENSATION:  
Option activity

 

 

 

 

Number
of shares

 

Weighted-average
exercise price
per share

 

Weighted-average
remaining
contractual term
(in years)

 

Aggregate
intrinsic value
(in thousands)

 

Outstanding at March 31, 2012

 

8,322,077

 

$

20.91

 

 

 

 

 

Granted

 

497,409

 

$

13.31

 

 

 

 

 

Exercised

 

(27,500

)

$

10.18

 

 

 

$

136

 

Forfeited or cancelled

 

(176,690

)

$

17.33

 

 

 

 

 

Outstanding at June 30, 2012

 

8,615,296

 

$

20.57

 

4.36

 

$

6,048

 

 

 

 

 

 

 

 

 

 

 

 

 

Exercisable at June 30, 2012

 

7,285,698

 

$

21.87

 

3.43

 

$

3,838

Summary of stock options outstanding and exercisable

 

 

 

 

Options outstanding

 

Options exercisable

 

Range of
exercise price
per share

 

Options
outstanding

 

Weighted-average
remaining
contractual life

 

Weighted-average
exercise price
per share

 

Options
exercisable

 

Weighted-average
exercise price
per share

 

 

 

 

 

 

 

 

 

 

 

 

 

$

   3.69 - $   9.62

 

114,595

 

5.77 years

 

$

8.65

 

87,595

 

$

8.57

 

$

 10.22 - $ 15.00

 

2,500,397

 

6.96 years

 

$

12.99

 

1,220,943

 

$

12.44

 

$

 15.10 - $ 19.82

 

1,875,920

 

3.81 years

 

$

16.68

 

1,852,776

 

$

16.67

 

$

 20.12 - $ 25.00

 

2,106,717

 

3.84 years

 

$

22.92

 

2,106,717

 

$

22.92

 

$

 25.98 - $ 29.30

 

1,102,201

 

2.19 years

 

$

26.69

 

1,102,201

 

$

26.69

 

$

 30.93 - $ 39.12

 

673,924

 

1.95 years

 

$

35.81

 

673,924

 

$

35.81

 

$

 40.50 - $ 62.06

 

241,542

 

2.30 years

 

$

44.09

 

241,542

 

$

44.09

 

 

 

8,615,296

 

4.36 years

 

$

20.57

 

7,285,698

 

$

21.87

 

Non-vested non performance restricted stock unit activity

 

 

 

 

Number
of shares

 

Weighted average
fair value per
share at grant
date
(in thousands)

 

Weighted-average
remaining
contractual term
(in years)

 

Outstanding at March 31, 2012

 

1,175,161

 

$

13.40

 

2.21

 

Granted

 

533,992

 

$

13.28

 

 

 

Vested

 

(338,431

)

$

13.22

 

 

 

Forfeited or cancelled

 

(55,470

)

$

14.24

 

 

 

Outstanding at June 30, 2012

 

1,315,252

 

$

13.36

 

2.76

 

Non-vested performance-based restricted stock unit activity

 

 

 

Number
of shares

 

Weighted average
fair value per
share at grant
date
(in thousands)

 

Weighted-average
remaining
contractual term
(in years)

 

Outstanding at March 31, 2012

 

511,864

 

$

10.91

 

2.31

 

Granted

 

384,563

 

$

13.50

 

 

 

Outstanding at June 30, 2012

 

896,427

 

$

12.02

 

2.32