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Share-Based Compensation
3 Months Ended
Mar. 31, 2014
Share-based Compensation [Abstract]  
Share-Based Compensation
Share-Based Compensation
The Company provides compensation benefits by granting stock options and employee stock purchase rights to its employees and restricted shares to its directors. The Company's annual grant of option awards generally takes place during the second quarter of each fiscal year, and no grants were made in the quarters ended March 31, 2014 and 2013. The grant of employee stock purchase rights and the issuance of shares under the employee stock purchase plan are made in the third quarter of each fiscal year and none were issued in the three-month periods ended March 31, 2014 and 2013.
The Company recognizes stock compensation expense based on an estimate of the fair value of awards granted to employees and directors under the Company’s stock option, director restricted stock and employee stock purchase rights plans. The expense, adjusted for expected forfeitures, is recognized on a straight-line basis over the stock awards' vesting period. The forfeiture assumption used to calculate compensation expense is primarily based on historical pre-vesting employee forfeiture patterns.
 
 
 
 
Total stock compensation expense and the total related tax benefit recognized are as follows:
 
Three months ended
 
March 31,
 
2014
 
2013
Stock compensation expense
$
10,294

 
$
11,005

Recognized tax benefit
$
944

 
$
649