Debt - Additional Information (Detail)	1 Months Ended	3 Months Ended		6 Months Ended			1 Months Ended	6 Months Ended			1 Months Ended	3 Months Ended	6 Months Ended			6 Months Ended		6 Months Ended	1 Months Ended		6 Months Ended	1 Months Ended		6 Months Ended	1 Months Ended
	Apr. 30, 2013 USD ($)	May 02, 2014 USD ($)	Apr. 26, 2013 USD ($)	May 02, 2014 USD ($)	Apr. 26, 2013 USD ($)	Oct. 25, 2013 USD ($)	Mar. 31, 2011 Secured Debt USD ($)	May 02, 2014 Secured Debt USD ($)	May 02, 2014 Senior Notes 7% Maturing in August 2020 USD ($)	Oct. 25, 2013 Senior Notes 7% Maturing in August 2020 USD ($)	Apr. 30, 2013 Senior Notes 6.625% Maturing in March 2017 USD ($)	Apr. 26, 2013 Senior Notes 6.625% Maturing in March 2017 USD ($)	May 02, 2014 Euro Term Loan USD ($)	May 02, 2014 Euro Term Loan EUR (€)	Jul. 31, 2011 Euro Term Loan EUR (€)	May 02, 2014 U.S. Term Loan USD ($)	Apr. 30, 2013 U.S. Term Loan USD ($)	May 02, 2014 London Interbank Offered Rate (LIBOR) [Member] Secured Debt	Mar. 31, 2011 London Interbank Offered Rate (LIBOR) [Member] Minimum Secured Debt	Mar. 31, 2011 London Interbank Offered Rate (LIBOR) [Member] Maximum Secured Debt	May 02, 2014 London Interbank Offered Rate (LIBOR) [Member] Euro Term Loan	Jul. 31, 2011 London Interbank Offered Rate (LIBOR) [Member] Euro Term Loan Minimum	Jul. 31, 2011 London Interbank Offered Rate (LIBOR) [Member] Euro Term Loan Maximum	May 02, 2014 London Interbank Offered Rate (LIBOR) [Member] U.S. Term Loan	Apr. 30, 2013 London Interbank Offered Rate (LIBOR) [Member] U.S. Term Loan Minimum	Apr. 30, 2013 London Interbank Offered Rate (LIBOR) [Member] U.S. Term Loan Maximum
Debt Disclosure [Line Items]
Credit facility maximum borrowing capacity							$ 460,000,000
Credit facility expiration date							2016-07
Interest rate, basis spread on variable rate																		1.75%	1.50%	2.25%	1.75%	1.50%	2.25%	1.75%	1.50%	2.25%
Credit facility interest rate description								The interest rate ranges from LIBOR plus 1.5% to LIBOR plus 2.25% depending on the leverage ratios at the time the funds are drawn.
Credit facility amount outstanding								130,000,000					12,500,000	9,000,000		166,300,000
Interest rate at period end								1.91%					2.00%	2.00%		1.91%
Term Loan															125,000,000		175,000,000
Loan amortization rate													1.25%	1.25%		1.25%
Loan amortization end date													2016-03	2016-03		2016-03
Loan remaining balance due date													2016-07	2016-07		2016-07
Early Payment of Senior Debt											175,000,000
Redemption premium in connection with early redemption of notes	3,900,000
Debt instrument, interest rate	6.625%								7.00%
Unamortized debt issuance cost		5,359,000		5,359,000		6,211,000					1,300,000
Amount of interest rate swap agreement	175,000,000
Gain on termination of interest rate swap	2,900,000
Loss on extinguishment of debt		0	(946,000)	0	(946,000)							(900,000)
Debt instrument, carrying amount									250,000,000
Debt instrument, fair value									271,300,000	272,500,000
Debt instruments maturity date									August 2020
Imputed interest on advance		4.20%		4.20%
Discounted value of debt		$ 52,100,000		$ 52,100,000		$ 56,900,000