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Share-Based Compensation Arrangement
12 Months Ended
Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-Based Compensation Arrangement
Share-Based Compensation Arrangements
Washington Trust has two share-based compensation plans, which are described below.

In 2009, the Bancorp’s 2003 Stock Incentive Plan (the “2003 Plan”) was amended and restated and was also approved by shareholders in April 2009.  The 2003 Plan amendments included increasing the maximum number of shares of Bancorp’s common stock to be issued under the 2003 Plan from 600,000 shares to 1,200,000 shares and increasing the number of shares that can be issued in the form of awards other than share options or stock appreciation rights from 200,000 to 400,000.  The 2003 Plan permits the granting of share options and other equity incentives to officers, employees, directors, and other key persons.  The exercise price of each share option may not be less than the fair market value of the Bancorp's common stock on the date of grant, and options shall have a term of no more than ten years. Share options are designated as either non-qualified or incentive share options.  Incentive share option awards may be granted at any time until February 19, 2019.

The Bancorp’s 1997 Equity Incentive Plan, as amended (the “1997 Plan”), which was shareholder approved, provided for the granting of share options and other equity incentives to key employees, directors, advisors, and consultants.  The 1997 Plan permitted share options and other equity incentives to be granted at any time until April 29, 2007.

The 1997 Plan and the 2003 Plan (collectively, “the Plans”) permit options to be granted with stock appreciation rights ("SARs"), however, no share options have been granted with SARs.  In general, the share option price is payable in cash, by the delivery of shares of common stock already owned by the grantee, or a combination thereof.  The fair value of share options on the date of grant is estimated using the Black-Scholes Option-Pricing Model.

The Plans also permit nonvested share units, nonvested shares and nonvested performance shares to be granted.  These awards are valued at the fair market value of the Bancorp’s common stock as of the award date.  Performance share awards are granted providing certain officers of the Corporation the opportunity to earn shares of common stock the number of which is determined pursuant to, and subject to the attainment of, performance goals during a specified measurement period.  The number of shares earned will range from zero to 200% of the target number of shares dependent upon the Corporation’s core return on equity and core earnings per share growth ranking compared to an industry peer group.

Vesting of share options and share awards may accelerate or may be subject to proportional vesting if there is a change in control, disability, retirement or death (as defined in the Plans).

Amounts recognized in the consolidated financial statements for share options, nonvested share units, nonvested share awards and nonvested performance shares are as follows:
(Dollars in thousands)
 
 
 
 
 
 
 
 
 
 
 
Years ended December 31,
2011

 
2010

 
2009

Share-based compensation expense

$1,394

 

$909

 

$708

Related income tax benefit

$497

 

$324

 

$252


Compensation expense for share options, nonvested shares and nonvested share units is recognized over the service period based on the fair value at the date of grant.  Nonvested performance share compensation expense is based on the most recent performance assumption available and is adjusted as assumptions change.  If the goals are not met, no compensation cost will be recognized and any recognized compensation costs will be reversed.

Share Options
During 2011 and 2010, the Corporation granted to certain key employees 57,450 and 83,700 non-qualified share options, respectively, with three-year cliff vesting terms.  During 2009, the Corporation granted a certain executive officer 21,000 non-qualified share options with a five-year cliff vesting term.

The fair value of the share option awards granted in 2011, 2010 and 2009 were estimated on the date of grant using the Black-Scholes Option-Pricing Model based on assumptions noted in the following table.  Washington Trust uses historical data to estimate share option exercise and employee departure behavior used in the option-pricing model; groups of employees that have similar historical behavior are considered separately for valuation purposes.  The expected term of options granted was derived from the output of the option valuation model and represents the period of time that options granted are expected to be outstanding.  Expected volatility was based on historical volatility of Washington Trust shares.  The risk-free rate for periods within the contractual life of the share option was based on the U.S. Treasury yield curve in effect at the date of grant.
 
2011

 
2010

 
2009

Expected term (years)
9.0

 
9.0

 
6.7

Expected dividend yield
3.33
%
 
3.16
%
 
3.05
%
Weighted average expected volatility
41.90
%
 
41.95
%
 
44.26
%
Expected forfeiture rate
%
 
%
 
%
Weighted average risk-free interest rate
3.05
%
 
3.42
%
 
3.28
%

The weighted average grant-date fair value of the share options awarded during 2011, 2010 and 2009 was $7.46, $6.29 and $6.39, respectively.

A summary of the status of Washington Trust's share options as of December 31, 2011 and changes during the year ended December 31, 2011 is presented below:
 
Number of Share Options
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Term (Years)
 
Aggregate Intrinsic Value (000's)
Outstanding at January 1, 2011
795,257

 

$22.46

 
 
 
 
Granted
57,450

 
21.71

 
 
 
 
Exercised
(116,466
)
 
18.86

 
 
 
 
Forfeited or expired
(24,180
)
 
23.20

 
 
 
 
Outstanding at December 31, 2011
712,061

 

$22.96

 
4.1

 

$1,586

As of December 31, 2011:
 
 
 
 
 
 
 
Options exercisable
559,311

 

$24.00

 
2.8

 

$867

Options expected to vest in future periods
152,750

 

$19.15

 
8.7

 

$720


The total intrinsic value is the amount by which the fair value of the underlying stock exceeds the exercise price of an option on the exercise date.

Additional information concerning options outstanding and options exercisable at December 31, 2011 is summarized as follows:
 
Options Outstanding
 
Options Exercisable
Exercise Price Ranges
Number of
Shares
 
Weighted Average
Remaining Life (Years)
 
Weighted Average
Exercise Price
 
Number
 
Weighted Average
Exercise Price
$14.47 to $17.36
3,582

 
6.9

 

$16.58

 
3,582

 

$16.58

$17.37 to $20.26
300,324

 
3.3

 
19.25

 
205,024

 
20.02

$20.27 to $23.15
74,450

 
7.6

 
21.48

 
17,000

 
20.72

$23.16 to $26.05
80,400

 
6.5

 
24.12

 
80,400

 
24.12

$26.06 to $28.94
253,305

 
3.3

 
27.52

 
253,305

 
27.52

 
712,061

 
4.1

 

$22.96

 
559,311

 

$24.00


The total intrinsic value of share options exercised during the years ended December 31, 2011, 2010 and 2009 was $493 thousand, $349 thousand and $115 thousand, respectively.

Nonvested Shares and Share Units
During 2011, the Corporation granted to directors and certain key employees 31,950 nonvested share units with three years cliff vesting terms.  During 2010, the Corporation granted to directors and certain key employees 56,500 nonvested share units with three to five-year cliff vesting terms.  During 2009, the Corporation granted to a certain key employee 7,000 nonvested share units with five-year cliff vesting terms.

A summary of the status of Washington Trust’s nonvested shares as of December 31, 2011 and changes during the year ended December 31, 2011 is presented below:
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Nonvested at January 1, 2011
85,907

 

$20.11

Granted
31,950

 
22.25

Vested
(26,607
)
 
23.60

Forfeited

 

Nonvested at December 31, 2011
91,250

 

$19.84


Nonvested Performance Shares
During 2011, performance share awards were granted to certain executive officers providing the opportunity to earn shares of common stock of the Corporation ranging from zero to 73,502 shares.  The performance shares awarded were valued at $21.62, the fair market value at the date of grant, and will be earned over a three year performance period. The current assumption based on the most recent peer group information results in the shares earned at 155% of the target, or 56,966 shares.

During 2010, a performance share award was granted to an executive officer providing the opportunity to earn shares of common stock of the Corporation ranging from zero to 25,000 shares.  The performance shares awarded were valued at $15.11, the fair market value at the date of grant, and will be earned over a three year performance period. The current assumption based on the most recent peer group information results in the shares earned at 155% of the target, or 19,375 shares.

There were no performance share awards granted during 2009.

A summary of the status of Washington Trust’s performance share awards as of December 31, 2011 and changes during the year ended December 31, 2011 is presented below:
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Performance shares at January 1, 2011
16,500

 

$24.12

Granted
59,841

 
21.31

Vested

 

Forfeited

 

Performance shares at December 31, 2011
76,341

 

$19.97


As of December 31, 2011, there was $2.7 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements (including share options, nonvested share awards and performance share awards) granted under the Plans.  That cost is expected to be recognized over a weighted average period of 2.2 years.