Employee annual base salary to qualify under plan.

No definition available.

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- Definition

Employee Stock Ownership Plan (ESOP), Shares Authorized for Issuance

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Share-Based Compensation Plans

+ References

No definition available.

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- Definition

Share-based compensation arrangements for restricted stock value grant in period.

+ References

No definition available.

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- Definition

Share-based compensation plans.

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No definition available.

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Share-based Compensation Arrangement by Share-based Payment Award, Number of Trading Days to Determine Grant Value

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Restriction Period

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

This item represents the number of shares provided to the Employee Stock Ownership Plan (ESOP) during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (a)
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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Value of stock issued as a result of the exercise of stock options.

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Share-Based Compensation Plans - Textual (Details)	12 Months Ended
Share-Based Compensation Plans - Textual (Details)	Jan. 28, 2017 USD ($) Plan trading_day shares	Jan. 30, 2016 USD ($) shares	Jan. 31, 2015 USD ($) shares
Share-Based Compensation Plans (Textual) [Abstract]
Number of fixed stock compensation plans \| Plan	2
Tax benefit of stock options and restricted stock \| $	$ 313,000	$ 150,000	$ 3,061,000
Total intrinsic value of options exercised \| $	700,000	900,000	3,400,000
Exercise of stock options \| $	$ 1,018,000	$ 1,308,000	$ 1,818,000
Director
Share-Based Compensation Plans (Textual) [Abstract]
Restriction period	3 years
Share-based compensation, shares issued	13,734	12,978	11,592
Share-based compensation cost \| $	$ 1,400,000	$ 1,400,000	$ 1,100,000
Stock Options \| Maximum
Share-Based Compensation Plans (Textual) [Abstract]
Stock option's maximum term	10 years
Nonvested Restricted Shares
Share-Based Compensation Plans (Textual) [Abstract]
Unrecognized share-based compensation cost \| $	$ 25,700,000
Shares granted	236,364	219,404	185,416
Share-based compensation cost \| $	$ 12,100,000	$ 12,400,000	$ 12,300,000
Weighted average expected period nonvested share-based compensation	1 year 9 months 14 days
Nonvested Restricted Shares \| Director
Share-Based Compensation Plans (Textual) [Abstract]
Shares granted	760
2009 Equity Incentive Plan
Share-Based Compensation Plans (Textual) [Abstract]
Share-based compensation, shares issued	2,600,000.0
2009 Equity Incentive Plan \| Director
Share-Based Compensation Plans (Textual) [Abstract]
Restriction period	3 years
Share-based compensation for restricted stock value grant in period \| $	$ 97,500	$ 97,500	$ 97,500
Number of trading days to determine grant value \| trading_day	5
Share-based compensation, shares issued	8,758	6,791	4,804
2009 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Vesting term	4 years
Unrecognized share-based compensation cost \| $	$ 0
2009 Equity Incentive Plan \| Nonvested Restricted Shares
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting term	4 years
Share-based compensation, shares issued	236,364	219,404	185,416
2005 Equity Incentive Plan
Share-Based Compensation Plans (Textual) [Abstract]
Share-based compensation, shares issued	2,500,000.0
2005 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Vesting term	4 years
Addition to the 2009 Equity Incentive Plan \| Nonvested Restricted Shares
Share-Based Compensation Plans (Textual) [Abstract]
Vesting term	3 years
Share-based compensation, shares issued	2,523
Stock Purchase Plans
Share-Based Compensation Plans (Textual) [Abstract]
Employee annual base salary to qualify under plan \| $		$ 90,000
Shares sold to employees		2,470	2,688
Common Stock \| Stock Purchase Plans
Share-Based Compensation Plans (Textual) [Abstract]
Shares authorized for issuance		1,000,000.0
Vesting percentage - Year 1 \| 2009 Equity Incentive Plan
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 1 \| 2005 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 2 \| 2009 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 2 \| 2005 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 3 \| 2009 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 3 \| 2005 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 4 \| 2009 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%
Vesting percentage - Year 4 \| 2005 Equity Incentive Plan \| Stock Options
Share-Based Compensation Plans (Textual) [Abstract]
Annual vesting percentage	25.00%