XML 20 R46.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share-Based Compensation - Summary of Liability Based Award Activity (Details) (Liability Based Awards, USD $)
3 Months Ended
Mar. 31, 2014
Performance unit incentive plan (PUP)
 
Summary of Liability-Based Award Activity [Roll Forward]  
Beginning Balance, Shares 299,768
Granted, Shares 123,300
Vested, Shares (94,600)
Forfeited or Cancelled, Shares 0
Ending Balance, Shares 328,468
Beginning Balance, Weighted-Average Grant Date Fair Value $ 23.46
Granted, Weighted-Average Grant Date Fair Value $ 23.71
Vested, Weighted-Average Grant Date Fair Value $ 23.01
Forfeited or Cancelled, Weighted-Average Grant Date Fair Value $ 0.00
Ending Balance, Weighted-Average Grant Date Fair Value $ 23.69
Restricted Stock (RSU)
 
Summary of Liability-Based Award Activity [Roll Forward]  
Beginning Balance, Shares 430,899
Granted, Shares 83,300
Vested, Shares (132,255)
Forfeited or Cancelled, Shares (5,140)
Ending Balance, Shares 376,804
Beginning Balance, Weighted-Average Grant Date Fair Value $ 22.78
Granted, Weighted-Average Grant Date Fair Value $ 23.95
Vested, Weighted-Average Grant Date Fair Value $ 22.67
Forfeited or Cancelled, Weighted-Average Grant Date Fair Value $ 22.44
Ending Balance, Weighted-Average Grant Date Fair Value $ 23.09
Performance Based Restricted Stock Shares (PBRSU)
 
Summary of Liability-Based Award Activity [Roll Forward]  
Beginning Balance, Shares 28,560
Granted, Shares 6,700
Vested, Shares (9,890)
Forfeited or Cancelled, Shares 0
Ending Balance, Shares 25,370
Beginning Balance, Weighted-Average Grant Date Fair Value $ 22.91
Granted, Weighted-Average Grant Date Fair Value $ 24.95
Vested, Weighted-Average Grant Date Fair Value $ 23.45
Forfeited or Cancelled, Weighted-Average Grant Date Fair Value $ 0.00
Ending Balance, Weighted-Average Grant Date Fair Value $ 23.24