XML 103 R74.htm IDEA: XBRL DOCUMENT v2.4.0.8
Capital Transactions - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended 3 Months Ended 0 Months Ended 3 Months Ended
Apr. 29, 2008
Mar. 30, 2014
Vote
Stock
Mar. 31, 2013
Mar. 28, 2014
Mar. 29, 2013
Mar. 04, 2014
Class B Common Stock [Member]
Mar. 05, 2013
Class B Common Stock [Member]
Mar. 30, 2014
Class B Common Stock [Member]
Vote
Mar. 31, 2013
Class B Common Stock [Member]
Apr. 29, 2008
Class B Common Stock [Member]
Apr. 29, 2008
Performance Shares [Member]
Schedule of Capitalization, Equity [Line Items]                      
Number of classes of common stock outstanding   2                  
Dividend is declared and paid on the Common Stock   $ 0.25 $ 0.25         $ 0.25 $ 0.25    
Number of votes per share   1           20      
Performance units authorized                     400,000
Term of performance unit award agreement 10 years                    
Common B stock per performance unit                   1  
Annual performance units granted                   40,000  
Maximum overall goal achievement factor                   100.00%  
Performance Unit Award Agreement expense recognized   $ 0.9 $ 0.6                
Share price       $ 85.25 $ 60.32            
Performance units awarded           40,000 40,000        
Performance units awards settled in cash               19,100 19,880    
Increase in total number of shares outstanding               20,900 20,120