Share-based Compensation (Notes)

3 Months Ended

Mar. 31, 2014

Share-based Compensation [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

Share-based Compensation

During the three months ended March 31, 2014, the Company granted 74 stock options, 37 shares of restricted stock and restricted stock units, 16 performance units and 19 leveraged restricted share units. Non-employee directors received 1 stock awards with a fair value of $103. During the three months ended March 31, 2014, participants in the Company’s stock option plans exercised options to purchase 14 shares of the Company’s common stock while 4 stock options were forfeited.

Stock options generally have a four-year graded vesting period. Restricted stock and restricted stock units generally vest ratably over a three-year period, and performance units and leveraged restricted share units vest at the end of a three-year performance period based on the achievement of certain performance conditions. During the three months ended March 31, 2014, 40 restricted stock and restricted stock units vested while 1 shares of restricted stock were forfeited. Also, during the three months ended March 31, 2014, 48 performance units vested while 1 performance units were forfeited.

Share-based compensation expense was $3,957 and $2,564 for the three months ended March 31, 2014 and 2013, respectively. As of March 31, 2014, total share-based compensation of $17,781 is expected to be recognized over the weighted-average period of approximately 2.4 years assuming performance units are earned at their maximum payout potential.