XML 41 R28.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock-Based Compensation (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Restricted shares
 
Stock-based compensation  
Vesting period 3 years
Changes in unvested awards, shares  
Balance at the beginning of the period (in shares) 50
Granted (in shares) 58
Vested or exercised (in shares) (7)
Balance at the end of the period (in shares) 101
Changes in awards, Wtd Avg Grant Price  
Balance at the beginning of the period (in dollars per share) $ 31.35
Granted (in dollars per share) $ 20.29
Vested or exercised (in dollars per share) $ 42.72
Balance at the end of the period (in dollars per share) $ 24.16
Option awards
 
Stock-based compensation  
Vesting period 4 years
Option share awards vest annually in increments (as a percent) 25.00%
Changes in option awards outstanding, Shares  
Balance at the beginning of the period (in shares) 341
Granted (in shares) 68
Forfeited (in shares) (23)
Balance at the end of the period (in shares) 386
Changes in option awards, Wtd Avg Ex. Price  
Balance at the beginning of the period (in dollars per share) $ 25.62
Granted (in dollars per share) $ 20.71
Forfeited (in dollars per share) $ 30.77
Balance at the end of the period (in dollars per share) $ 24.46