Earnings Per Share - Per Share Amount (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May 02, 2015	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Summary of basic and diluted earnings per share
Earnings from continuing operations									$ 97,859	$ 95,381	$ 99,373
Basic EPS from continuing operations
Income from continuing operations available to common shareholders, Income (Numerator)									$ 97,859	$ 95,381	$ 99,373
Income from continuing operations available to common shareholders, in shares (Denominator)									20,076,000	22,880,000	23,507,000
Income from continuing operations available to common shareholders (USD per share)									$ 4.87	$ 4.17	$ 4.23
Effect of Dilutive Securities from continuing operations
Options and restricted stock, in shares (Denominator)									58,000	76,000	155,000
Employees' preferred stock, in shares (Denominator)									38,000	44,000	46,000
Diluted EPS from continuing operations
Income from continuing operations available to common shareholders plus assumed conversions, Income (Numerator)									$ 97,859	$ 95,381	$ 99,373
Income from continuing operations available to common shareholders plus assumed conversions, in shares (Denominator)									20,172,000	23,000,000	23,708,000
Continuing operations (USD per share)	$ 2.40	$ 1.30	$ 0.72	$ 0.50	$ 2.07	$ 1.43	$ 0.32	$ 0.42	$ 4.85	$ 4.15	$ 4.19
Common convertible ratio (in shares)	1								1