Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	1 Months Ended												3 Months Ended								12 Months Ended
	Nov. 30, 2019	Aug. 31, 2019	May 31, 2019	Mar. 31, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Mar. 31, 2018	Nov. 30, 2017	Aug. 31, 2017	May 30, 2017	Feb. 28, 2017	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share (in dollars per share)	$ 0.255	$ 0.255	$ 0.255	$ 0.255	$ 0.225	$ 0.225	$ 0.225	$ 0.225	$ 0.160	$ 0.160	$ 0.160	$ 0.160	$ 0.255	$ 0.255	$ 0.255	$ 0.255	$ 0.225	$ 0.225	$ 0.225	$ 0.225	$ 1.02	$ 0.90	$ 0.64