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Restricted Stock Units
6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Restricted Stock Units
Restricted Stock Units
Pursuant to its stock incentive plan, the Company may issue restricted stock units (RSUs) to employees of the Company and its subsidiaries. The RSUs generally vest five years from the award date and are subject to other vesting and forfeiture provisions contained in the award agreement. RSUs are expensed pro-ratably over the vesting period. RSU expenses were $11 million and $15 million for the six months ended June 30, 2013 and 2012, respectively. Grants of RSUs are made periodically, generally every other year. A summary of RSUs issued in the six months ended June 30, 2013 and 2012 follows:
 
($ in thousands)
Units
 
Fair Value
Six months ended June 30:
 
 
 
2013
55,150

 
$
2,312

2012
99,050

 
$
3,633