Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Aug. 01, 2020	May 02, 2020	Aug. 03, 2019	May 04, 2019	Aug. 01, 2020	Aug. 03, 2019
Earnings Per Share [Abstract]
Net income	$ 276,843	$ (143,422)	$ 112,534	$ 57,525	$ 133,421	$ 170,059
Weighted average common shares outstanding - basic	84,130		88,080		83,932	90,483
Dilutive effect of stock-based awards (in shares)	3,577		1,320		2,868	1,411
Dilutive effect of Convertible Senior Notes and warrants	1,119		0		560	0
Diluted (in shares)	88,826		89,400		87,360	91,894
Earnings per common share - basic (in dollars per share)	$ 3.29		$ 1.28		$ 1.59	$ 1.88
Earnings per common share - diluted (in dollars per share)	$ 3.12		$ 1.26		$ 1.53	$ 1.85
Anti-dilutive stock-based awards excluded from diluted calculation (in shares)	2,800		3,200		3,100	3,200