Annual report pursuant to Section 13 and 15(d)

Performance-Based Restricted Share Awards Activity (Detail)

v2.4.0.8
Performance-Based Restricted Share Awards Activity (Detail) (Performance Based Restricted Stock, USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Performance Based Restricted Stock
     
Number of Shares      
Beginning Balance 275,257 533,587 722,027
Granted 100,000 270,000 20,646
Vested (31,902) (132,791) (209,086)
Forfeited/cancelled (273,355) (395,539) 0
Ending Balance 70,000 275,257 533,587
Weighted-Average price      
Beginning of Period $ 22.46 $ 23.39 $ 22.33
Granted $ 21.60 $ 22.93 $ 25.77
Vested $ 17.99 $ 12.87 $ 19.97
Forfeited/cancelled $ 23.40 $ 27.26 $ 0.00
Ending of Period $ 18.10 $ 22.46 $ 23.39