Equity-Based Compensation - Vesting Terms of Restricted Stock Units (Detail)	12 Months Ended
	Sep. 28, 2013
Restricted Stock Units | Awards Granted Prior to January 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs vesting percentage on the second anniversary of the grant date	50.00%
RSUs vesting percentage on the fourth anniversary of the grant date	50.00%
Restricted Stock Units | Awards Granted Effective January 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years RSUs to be vested from the date of grant	4 years
Performance Based Restricted Stock | Awards Granted Prior to January 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs vesting percentage on the second anniversary of the grant date	50.00%
RSUs vesting percentage on the fourth anniversary of the grant date	50.00%
Performance Based Restricted Stock | Awards Granted Effective January 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of years RSUs to be vested from the date of grant	3 years