Debt - Additional Information (Detail) £ in Millions, CAD in Millions		1 Months Ended		3 Months Ended	12 Months Ended
	Feb. 17, 2017	Jan. 29, 2017 USD ($)	Feb. 29, 2016 USD ($)	Jan. 29, 2017 GBP (£)	Oct. 30, 2016 USD ($)	Jan. 29, 2017 CAD	Jan. 29, 2017 USD ($)
Debt Instrument [Line Items]
Less: current portion					$ 2,050,000		$ 97,050,000
Total long-term debt					$ 95,000,000		0
Line of Credit
Debt Instrument [Line Items]
Line of credit facility borrowing capacity				£ 20.0		CAD 30.0	160,000,000.0
Cash collateral of outstanding short-term borrowings							20,000,000.0
Unbilled receivable percent		10.00%			15.00%
Maximum quarterly distribution if liquidity requirement is met		$ 500,000.0
Covenant terms, EBIT minimum to pay dividends		40,000,000
Fair value of amount outstanding							142,500,000
Maximum borrowing capacity							250,000,000.0
Outstanding borrowing					$ 95,000,000		95,000,000
Weighted average interest rate during period				2.60%	2.30%
Available borrowing capacity of facility							16,400,000
Letter of Credit
Debt Instrument [Line Items]
Line of credit facility borrowing capacity							50,000,000
Fair value of amount outstanding							31,000,000
Casualty Insurance Program
Debt Instrument [Line Items]
Fair value of amount outstanding							28,900,000
Security Deposit
Debt Instrument [Line Items]
Fair value of amount outstanding							2,100,000
Maintech, Incorporated | Letter of Credit
Debt Instrument [Line Items]
Line of credit facility borrowing capacity			$ 100,000
Portion secured by parent			3,000,000.0
Maintech, Incorporated | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility borrowing capacity			10,000,000
Fair value of amount outstanding					$ 2,100,000		2,100,000
Outstanding borrowing			$ 2,000,000
Available borrowing capacity of facility					3,300,000		2,700,000
Term			364 days
Commitment fee percentage			0.375%
Maintech, Incorporated | Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			2.75%
Sale of Maintech or Receipt of IRS Refund | Line of Credit
Debt Instrument [Line Items]
Cash Collateral for Borrowed Securities, Contingent Maximum							25,000,000.0
Dividend Payment or Stock Repurchase | Line of Credit
Debt Instrument [Line Items]
Cash Collateral for Borrowed Securities, Contingent Maximum							35,000,000.0
Maximum | Line of Credit
Debt Instrument [Line Items]
Supply chain finance receivable		$ 5,000,000
Subsequent Event | Maintech, Incorporated | Revolving Credit Facility
Debt Instrument [Line Items]
Term	364 days
Short Term Financing Program
Debt Instrument [Line Items]
Financing programs					$ 97,050,000		$ 97,050,000