Debt - Senior Notes, Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Aug. 04, 2018 USD ($) $ / shares	Aug. 04, 2018 USD ($) $ / shares
Debt
(Loss) gain on extinguishment of debt	$ (8,122)	$ (20,833)
Senior Notes
Debt
Partial redemption	$ 175,000	$ 175,000
Redemption price (in dollars per $1000) | $ / shares	$ 1,035,000	$ 1,035,000
Repurchase and retired amount		$ 17,600
(Loss) gain on extinguishment of debt	$ (8,100)	(8,900)
Loss upon repurchase	(6,100)	(6,700)
Unamortized deferred financing costs	$ 2,000	$ 2,200