XML 71 R38.htm IDEA: XBRL DOCUMENT v2.4.0.6
Weighted Average Common Shares Outstanding (Detail)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 25, 2011
Jun. 30, 2012
Jun. 25, 2011
Schedule of Weighted Average Number of Diluted Shares Outstanding [Line Items]        
Weighted average common shares outstanding-basic 63,078,510 64,528,623 63,651,983 64,632,732
Stock options and non-vested restricted common stock   1,246,344   1,082,289
Weighted average common shares outstanding-diluted 63,078,510 65,774,967 63,651,983 65,715,021