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Description of Business and Significant Accounting Policies - Additional Information (Detail) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 28, 2017 USD ($) State Store $ / shares | Jan. 30, 2016 USD ($) $ / shares | Jan. 28, 2017 USD ($) State Store shares | Jan. 30, 2016 USD ($) shares | Jan. 31, 2015 USD ($) shares
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Number of home decor and gifts store | Store | 404 |  | 404 |  |
Number of states | State | 36 |  | 36 |  |
Non-cash investing activities incurred |  |  | $ 1,400,000 | $ 2,600,000 |
Depreciation of capitalized software |  |  | 6,100,000 | 5,300,000 | $ 4,000,000
Net book value of capitalized software assets | $ 24,900,000 | $ 22,800,000 | 24,900,000 | 22,800,000 |
Capitalized computer software currently under development | 3,100,000 | 2,000,000 | 3,100,000 | 2,000,000 |
Liability for asset retirement obligations | $ 659,000 | $ 574,000 | 659,000 | 574,000 |
Workers' Compensation and General Liability Reserve Benefit, Earnings Per Share Diluted | $ / shares | $ 0.07 | $ 0.04 |  |  |
Workers Compensation and General Liability Reserve Benefit, After Tax | $ 1,100,000 | $ 700,000 |  |  |
Workers Compensation and General Liability Reserve Benefit | 1,700,000 | 1,100,000 |  |  |
Self-insurance reserve | 5,000,000 | 5,200,000 | 5,000,000 | 5,200,000 |
Part of rent expense over lease payment reflected as current liability in accrued expenses | 9,274,000 | 8,117,000 | 9,274,000 | 8,117,000 |
Part of rent expense over lease payments reflected as noncurrent liability | 52,656,000 | 48,280,000 | 52,656,000 | 48,280,000 |
Gift card breakage |  |  | 1,107,000 | 994,000 | 853,000
Advertising expense |  |  | $ 9,300,000 | $ 9,600,000 | $ 9,300,000
Tax benefit likelihood recognized |  |  | 50.00% |  |
Stock options not included in the computation of diluted earnings per share | shares |  |  | 629,000 | 316,000 | 426,000
Accounting Standards Update 2015-17 [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Reclassification of deferred tax assets from current assets to noncurrent liabilities |  | 3,300,000 |  | $ 3,300,000 |
Straight-Line Rent [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Cumulative net excess of recorded rent expense over lease payments | 14,800,000 | 13,000,000 | $ 14,800,000 | 13,000,000 |
Part of rent expense over lease payment reflected as current liability in accrued expenses | 1,600,000 | 1,200,000 | 1,600,000 | 1,200,000 |
Part of rent expense over lease payments reflected as noncurrent liability | 13,200,000 | 11,800,000 | 13,200,000 | 11,800,000 |
Tenant Construction Allowance [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Cumulative net excess of recorded rent expense over lease payments | 47,100,000 | 43,400,000 | 47,100,000 | 43,400,000 |
Part of rent expense over lease payment reflected as current liability in accrued expenses | 7,600,000 | 6,900,000 | 7,600,000 | 6,900,000 |
Part of rent expense over lease payments reflected as noncurrent liability | $ 39,500,000 | $ 36,500,000 | $ 39,500,000 | $ 36,500,000 |
Minimum [Member] | Capitalized Software Costs [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Range of estimated life of software |  |  | 3 years |  |
Maximum [Member] | Capitalized Software Costs [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Range of estimated life of software |  |  | 10 years |  |
Furniture and Fixtures [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of assets |  |  | 5 years |  |
Leasehold Improvements [Member] | Minimum [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of assets |  |  | 5 years |  |
Leasehold Improvements [Member] | Maximum [Member] |  |  |  |  |
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of assets |  |  | 10 years |  |

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