XML 63 R47.htm IDEA: XBRL DOCUMENT v3.3.1.900
STOCKHOLDERS' EQUITY (Details)
 3 Months Ended 12 Months Ended
Dec. 31, 2014
$ / shares
Dec. 31, 2015
USD ($)
Vote
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Common Stock [Member]        
Class of Stock [Line Items]        
Common stock dividend paid in cash (in dollars per share) | $ / shares $ 1.00      
Aggregate dividends paid on common Stock | $   $ 7,358,000 $ 27,077,000 $ 4,787,000
Class A Common Stock [Member]        
Class of Stock [Line Items]        
Preferential dividend rate of common stock of dividends paid on Class A common stock   105.00%    
Percentage of number of directors elected under Class A common stock voting right   75.00%    
Number of votes per share | Vote   10    
Conversion basis   1-for-1 basis    
Common stock dividend paid in cash (in dollars per share) | $ / shares $ 0.95      
Aggregate dividends paid on common Stock | $   $ 702,000 $ 2,703,000 $ 566,000