Long-Term Debt - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended		0 Months Ended				12 Months Ended				0 Months Ended	1 Months Ended		12 Months Ended
	Aug. 01, 2013	Jun. 30, 2011	Sep. 28, 2013	Sep. 29, 2012	Jun. 08, 2011	Jun. 08, 2011 Minimum [Member]	Sep. 28, 2013 Minimum [Member]	Jun. 08, 2011 Maximum [Member]	Sep. 28, 2013 Maximum [Member]	Aug. 01, 2013 Old Credit Facility [Member]	Sep. 28, 2013 Old Credit Facility [Member] Minimum [Member]	Sep. 28, 2013 Old Credit Facility [Member] Maximum [Member]	Sep. 28, 2013 Financial covenants [Member]	Sep. 28, 2013 LIBOR [Member]	Sep. 28, 2013 March 2014 [Member]	Sep. 28, 2013 March 2015 [Member]	Sep. 28, 2013 March 2016 [Member]	Dec. 05, 2013 Subsequent Event [Member] Asset Backed Loan Facility [Member]	Feb. 13, 2012 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member]	Mar. 08, 2010 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member]	Sep. 28, 2013 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member]	Sep. 29, 2012 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member]	Feb. 13, 2012 Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member] Old Credit Facility [Member]	Sep. 28, 2013 Senior subordinated notes [Member]	Sep. 28, 2013 Senior subordinated notes [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Sep. 28, 2013 Senior subordinated notes [Member] Carrying (Reported) Amount, Fair Value Disclosure [Member]
Components of long-term debt
Revolving credit facility					$ 275,000,000
Senior Credit Facility maturity period		5 years
Borrowing capacity			375,000,000
Old Credit Facility, maturity date					2016-06
Minimum interest coverage ratio	2.5									2.25
Minimum asset coverage ratio	1.1		14.7
Credit Facility, principal amount			23,000,000															390,000,000
Letters of credit outstanding			0
Other letters of credit outstanding			17,500,000
Unused commitments under the Credit Facility			351,100,000										168,300,000
Debt interest terms			Interest on the Old Credit Facility was based, at the Company's option, on a rate equal to the Alternate Base Rate (ABR), which is the greatest of the prime rate, the Federal Funds rate plus 0.5% or one month LIBOR plus 1%, plus a margin, which fluctuates from 0.75% to 1.75%, or LIBOR plus a margin, which fluctuates from 1.75% to 2.75% and commitment fees that range from 0.30% to 0.50%, determined quarterly based on consolidated total debt to consolidated EBITDA for the most recent trailing 12-month period.
Old Credit Facility, Alternate Base Rate computation, option first description					prime rate
Old Credit Facility, alternate base rate computation, option second description					Federal Funds rate plus 0.5%
Old Credit Facility, Alternate Base Rate computation, option second description, basis spread percentage					0.50%
Old Credit Facility basis percentage for calculation of variable rate spread					1.00%
Old Credit Facility, alternate base rate computation, option third description					One month LIBOR plus 1%, plus a margin,
Old Credit Facility alternate base rate computation option three					1.00%
Commitment fees range						0.30%		0.50%
Applicable interest rate on the Credit Facility			5.00%											2.90%
Maximum restricted payments including cash dividends and stock repurchases under Credit Agreement			200,000,000
Total Leverage Ratio							1.0		4.9
Present Senior Secured Leverage Ratio							1.0		2.0		0.3	1.0
Interest coverage ratio			2.35				2.25
Credit Facility, additional borrowings available																		200,000,000
Credit Facility, maturity date																		Dec. 05, 2018
Debt, aggregate principal amount			472,587,000	449,814,000																400,000,000	449,417,000	449,312,000
Debt instrument interest rate stated, percentage																				8.25%	8.25%			8.25%
Senior subordinated notes due date			Jun. 01, 2018																	Mar. 01, 2018	Mar. 01, 2018
Additional issuance amount on senior notes																							50,000,000
Notes issue price percentage																			98.501%
Issuance price of additional senior subordinated notes																							2018 Notes at a price of 98.501%, plus accrued interest from September 1, 2011, in a private placement.
Obligation to pay principle on the company Senior Subordinates Notes																					450,000,000			450,000,000
Senior subordinated notes due 2018																									449,500,000
Carrying value of senior subordinated Notes																										$ 449,400,000
Notes redemption price percentage			101.00%												104.125%	102.063%	100.00%
Debt redemption terms			The Company may redeem some or all of the 2018 Notes at any time prior to March 1, 2014 at the principal amount plus a "make whole" premium. The Company may redeem some or all of the 2018 Notes at any time on or after March 1, 2014 for 104.125%, after March 1, 2015 for 102.063% and after March 1, 2016 for 100%, plus accrued and unpaid interest.