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Stock-Based Incentive Plans (Tables)
6 Months Ended
Jun. 30, 2011
Stock-Based Incentive Plans  
Assumptions used to determine the fair value of options granted

Black-Scholes option pricing model assumptions for options granted in 2011 and 2010 are as follows:

 

Number

 

 

 

Risk-

 

 

 

 

 

 

 

 

 

Weighted

 

of Options

 

 

 

Free

 

 

 

 

 

 

 

 

 

Average

 

Granted

 

Grant

 

Interest

 

Dividend

 

Expected

 

 

 

 

 

Fair

 

(in thousands)

 

Date

 

Rate

 

Yield

 

Life

 

Volatility

 

Exercise Price

 

Value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1994 Plan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1,362

 

 

02/03/11

 

2.62

%

1.75

%

6.2 years

 

39.0

%

$29.66 to $32.63

 

$

10.33

 

148

 

 

02/02/10

 

2.93

%

1.62

%

6.5 years

 

36.0

%

$24.75

 

$

8.46

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1995 Plan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

 

02/15/11

 

2.92

%

1.76

%

6.6 years

 

38.0

%

$29.58

 

$

10.49

Summary of stock option activity

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

Weighted-

 

Average

 

Aggregate

 

 

 

 

 

Average

 

Remaining

 

Intrinsic

 

 

 

Shares

 

Exercise

 

Contractual

 

Value *

 

Non-Qualified Stock Options

 

(in thousands)

 

Price

 

Life (in years)

 

(in thousands)

 

 

 

 

 

 

 

 

 

 

 

 

Outstanding at January 1, 2011

 

1,124

 

$

34.19

 

 

 

 

 

Granted

 

1,392

 

29.66

 

 

 

 

 

Exercised

 

(7

)

23.74

 

 

 

 

 

Forfeited

 

(16

)

35.69

 

 

 

 

 

Outstanding at June 30, 2011

 

2,493

 

$

31.68

 

4.6

 

$

1,873

 

Outstanding and expected to vest at June 30, 2011

 

2,436

 

$

31.74

 

4.6

 

$

1,817

 

Exercisable at June 30, 2011

 

1,083

 

$

35.04

 

2.2

 

$

773

 

 

 

*     The intrinsic value represents the amount, if any, by which the fair market value of the underlying common stock exceeds the exercise price of the option, using the closing price per share of $29.87 as reported by the New York Stock Exchange on June 30, 2011.

Summary of unvested options activity

 

 

 

 

 

 

Weighted-

 

 

 

 

 

Average

 

 

 

Shares

 

Grant-Date

 

Unvested Options

 

(in thousands)

 

Fair Value

 

 

 

 

 

 

 

 

Unvested at January 1, 2011

 

180

 

$

7.85

 

Granted

 

1,392

 

10.33

 

Vested

 

(161

)

9.88

 

Forfeited

 

(1

)

6.55

 

Unvested at June 30, 2011

 

1,410

 

$

10.07