Benefit Plans (Details) - USD ($)	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Compensation and Retirement Disclosure [Abstract]
Employee contribution limit per calendar year	$ 18,000
Employee contribution limit per calendar year for employees attaining at least 50 years of age	$ 24,000
Requisite age of eligible employees for additional contribution	50 years
Employee contribution limit per calendar year (as a percent of eligible pay)	75.00%
Requisite service period of employee, to receive a employer's matching contribution	1 year
Employee's contribution matched by employer (as a percent of elective deferrals)	6.00%
Percentage of elective deferrals, matched 100% by employer	1.00%
Employer match of employee contributions of first 1% of elective deferrals (as a percent)	100.00%
Percentage of elective deferrals, matched 50% by employer	5.00%
Employer match of employee contributions of next 5% of elective deferrals (as a percent)	50.00%
Vesting period for employer's contribution	2 years
Benefit plan expense	$ 18,000,000
Change in benefit obligation:
Benefit obligation at beginning of year	196,922,000	$ 173,870,000
Service cost	3,932,000	4,396,000	$ 4,237,000
Interest cost	6,736,000	7,644,000	6,782,000
Actuarial (gain) loss	(18,788,000)	13,850,000
Benefits paid	(3,992,000)	(2,838,000)
Benefit obligation at end of year	184,810,000	196,922,000	173,870,000
Change in Pension Plan assets:
Fair value of Pension Plan assets at beginning of year	0	0
Employer contribution	3,992,000	2,838,000
Benefits paid	(3,992,000)	(2,838,000)
Fair value of Pension Plan assets at end of year	0	0	$ 0
Funded status (Pension Plan assets less benefit obligation)	(184,810,000)	(196,922,000)
Amounts recognized in the balance sheets:
Accrued benefit liability	(184,810,000)	(196,922,000)
Net amount recognized	(184,810,000)	(196,922,000)
Net actuarial loss	27,669,000	50,153,000
Prior service cost	0	0
Net amount recognized	27,669,000	50,153,000
Net actuarial loss	1,204,000
Prior service cost	0
Net amount recognized	1,204,000
Accumulated benefit obligation at end of year	$ (177,228,000)	$ (188,126,000)