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Description of Business and Significant Accounting Policies - Additional Information (Detail) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 30, 2016 USD ($) Store State $ / shares | Jan. 30, 2016 USD ($) Store State shares | Jan. 31, 2015 USD ($) shares | Feb. 01, 2014 USD ($) shares
Nature Of Business And Significant Accounting Policies [Line Items] |  |  |  |
Number of home decor and gifts store | Store | 376 | 376 |  |
Number of states | State | 35 | 35 |  |
Non-cash investing activities incurred |  | $ 2,600,000 |  |
Depreciation of capitalized software |  | 5,300,000 | $ 4,000,000 | $ 3,000,000
Net book value of capitalized software assets | $ 22,800,000 | 22,800,000 | 25,800,000 |
Capitalized computer software currently under development | 2,000,000 | 2,000,000 | 20,000 |
Liability for asset retirement obligations | $ 574,000 | 574,000 | 269,000 |
Workers' Compensation and General Liability Reserve Benefit, Earnings Per Share Diluted | $ / shares | $ 0.04 |  |  |
Workers Compensation and General Liability Reserve Benefit, After Tax | $ 685,000 |  |  |
Workers Compensation and General Liability Reserve Benefit | 1,100,000 |  |  |
Workers' compensation and general liability reserve | 5,200,000 | 5,200,000 | 4,400,000 |
Part of workers' compensation and general liability reflected as current liability in accrued expenses | 946,000 | 946,000 | 732,000 |
Part of workers' compensation and general liability reflects as noncurrent liability in other liabilities | 4,300,000 | 4,300,000 | 3,700,000 |
Cumulative net excess of recorded rent expense over lease payments |  | 13,000,000 | 11,000,000 |
Part of rent expense over lease payment reflected as current liability in accrued expenses | 1,200,000 | 1,200,000 | 1,100,000 |
Part of rent expense over lease payment reflected as noncurrent liability in accrued expenses | 11,800,000 | 11,800,000 | 9,900,000 |
Unamortized amount of construction allowances | 43,400,000 | 43,400,000 | 38,400,000 |
Part of construction allowance reflects as current liability in accrued expense | 6,900,000 | 6,900,000 | 6,400,000 |
Part of construction allowance reflects as noncurrent liability in deferred rent | $ 36,500,000 | 36,500,000 | 32,000,000 |
Gift card breakage |  | 994,000 | 853,000 | 1,103,000
Advertising expense |  | $ 9,600,000 | $ 9,300,000 | $ 9,300,000
Tax benefit likelihood recognized |  | 50.00% |  |
Stock options not included in the computation of diluted earnings per share | shares |  | 316,000 | 426,000 | 439,000
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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- Definition This item represents the deferred credit for an incentive or inducement received by a lessee from a lessor, in order to motivate the lessee to enter the lease agreement, which incentive or inducement is to be recognized as a reduction of rental expense over the lease term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Lease Incentive -URI http://asc.fasb.org/extlink&oid=6516590 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e40010-112707 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
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