Subordinated Debentures (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018
Note repurchase
Outstanding amount	$ 200,000	$ 200,000
Dillard's Capital Trust I
Note repurchase
Ownership interest percentage held in trust	100.00%
Dillard's Capital Trust I | 7.5% capital securities due on August 1, 2038, subject to mandatory redemption
Note repurchase
Liquidation amount	$ 200,000
Dividend rate (as a percent)	7.50%
Liquidation amount per security (in dollars per share)	$ 25
Dillard's Capital Trust I | 7.5% subordinated debentures due on August 1, 2038
Note repurchase
Outstanding amount	$ 200,000
Interest rate (as a percent)	7.50%
Maximum number of consecutive quarters available for deferral of interest payment	5 years