XML 47 R36.htm IDEA: XBRL DOCUMENT v2.4.0.8
Goodwill (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Goodwill impairment $ 29,300    $ 29,300     
Goodwill 28,651   28,651   54,348
PST [Member]
          
Goodwill impairment 29,300   29,300    
Goodwill impairment loss attributable to noncontrolling interest     6,436    
Goodwill $ 27,429   $ 27,429   $ 53,744