Short-term Borrowing and Long-term Debt - Additional Information (Detail) (USD $)	3 Months Ended			3 Months Ended		3 Months Ended		3 Months Ended						3 Months Ended
	May 03, 2014	Feb. 01, 2014	May 03, 2014 Affiliated Entity [Member]	May 03, 2014 Bonds [Member]	Feb. 01, 2014 Bonds [Member]	May 03, 2014 Protective Life Insurance Company [Member]	Jul. 18, 2013 Protective Life Insurance Company [Member]	May 03, 2014 Revolving Credit Facility [Member]	Feb. 01, 2014 Revolving Credit Facility [Member]	May 03, 2014 Letter of Credit [Member]	Feb. 01, 2014 Letter of Credit [Member]	May 03, 2014 Letter of Credit [Member] Bonds [Member]	May 03, 2014 Swing Line Loans [Member]	May 03, 2014 LIBOR [Member] Minimum [Member] Revolving Credit Facility [Member]	May 03, 2014 LIBOR [Member] Maximum [Member] Revolving Credit Facility [Member]	May 03, 2014 Prime Rate [Member] Minimum [Member] Revolving Credit Facility [Member]	May 03, 2014 Prime Rate [Member] Maximum [Member] Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Company enter into a Credit Agreement	Mar. 21, 2011
Revolving loan to the company	$ 150,000,000.0									$ 35,000,000.0			$ 15,000,000.0
Maximum borrowing capacity increased	200,000,000.0
Borrowing under revolving credit facility maturity date	Mar. 21, 2016
Credit facility restated maturity date								Jun. 27, 2018
Line of credit facilities interest at variable rate								1.87%						1.50%	2.00%	0.50%	1.00%
Credit facility restated commitment fee amount								0.25%
Maximum amount available under credit facility	122,900,000
Fair value measurements outstanding under revolving line of credit								42,700,000	18,700,000
Loan agreement amount outstanding				4,300,000	4,300,000		12,600,000			6,800,000	6,800,000	4,300,000
Maximum outstanding borrowing	46,500,000
Average outstanding borrowing	40,400,000
Interest rate on bonds				1.25%	1.25%
Bonds repurchased date	Mar. 13, 2016
Subsidiaries use maximum liability			5,880,000
Maturity date of debt				Dec. 01, 2019		Aug. 01, 2033
Fixed interest rate of loan							4.00%
Outstanding loan amount	12,300,000					12,300,000
Loan classified as short term	$ 43,128,000	$ 19,107,000				$ 400,000