Fair Value Disclosures (Details) - USD ($) $ in Thousands	Oct. 29, 2016	Jan. 30, 2016	Oct. 31, 2015
Fair value disclosures
Subordinated debentures	$ 200,000	$ 200,000	$ 200,000
Fair Value of Assets
Fair value disclosures
Long-term debt, including current portion, fair value	692,000
Subordinated debentures	210,000
Carrying value
Fair value disclosures
Long-term debt, including current portion	613,000
Subordinated debentures	$ 200,000