Benefit Plans (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Weighted average assumptions
Discount rate-net periodic pension cost (as a percent)	4.30%	5.50%	5.70%
Discount rate-benefit obligations (as a percent)	4.00%	4.30%	5.50%
Rate of compensation increases (as a percent)	3.00%	3.00%	3.00%
Components of net periodic benefit costs:
Service cost	$ 3,267	$ 3,326	$ 2,886
Interest cost	7,294	7,200	7,269
Net actuarial loss	5,132	1,967	2,376
Amortization of prior service cost	626	626	626
Net periodic benefit costs	$ 16,319	$ 13,119	$ 13,157

The amount of gains or losses recognized in net periodic benefit cost.

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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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The interest rate used to adjust for the time value of money for the plan.

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- Definition

Expected rate of compensation increases (for pay-related plans).

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The interest rate used to adjust for the time value of money.

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References

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

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- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

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

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