XML 84 R72.htm IDEA: XBRL DOCUMENT v3.4.0.3
Capital Transactions - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 08, 2016
Mar. 03, 2015
Apr. 03, 2016
Mar. 29, 2015
Apr. 01, 2016
Mar. 27, 2015
Schedule of Capitalization, Equity [Line Items]            
Performance Unit Award Agreement expense recognized     $ 1,627 $ 1,116    
Share price         $ 162.69 $ 111.57
Class B Common Stock [Member]            
Schedule of Capitalization, Equity [Line Items]            
Performance units awarded 40,000 40,000        
Performance units awards settled in cash 19,080 19,080        
Increase in total number of shares outstanding     20,920 20,920