Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Weighted Average Assumptions Used To Determine Projected Benefit Obligations For The Pension Plan) (Details)

v3.7.0.1
Retirement Plans (Weighted Average Assumptions Used To Determine Projected Benefit Obligations For The Pension Plan) (Details)
Jan. 28, 2017
Jan. 30, 2016
Supplemental Employee Retirement Plan    
Discount rate 4.07% 4.23%
Pension Plan [Member]    
Discount rate 4.00% 4.17%
Rate of compensation increases 4.10% 4.10%