Derivative Financial Instruments (Details 3) - USD ($)		3 Months Ended		6 Months Ended
		Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Gains (losses) before taxes recognized on the derivative instruments designated as cash flow hedges in OCI and net earnings (loss)
Amount of ineffectiveness recognized in net earnings (loss) on interest rate swap		$ 0	$ 0	$ 0	$ 0
Net after-tax derivative activity recorded in accumulated other comprehensive income (loss)
Beginning balance gain (loss)		(6,285,000)	4,948,000	(14,369,000)	5,400,000
Net gains (losses) from changes in cash flow hedges		4,111,000	(13,093,000)	10,579,000	(12,969,000)
Net (gains) losses reclassified into earnings (loss)		2,032,000	(606,000)	3,648,000	(1,182,000)
Ending balance loss		(142,000)	(8,751,000)	(142,000)	(8,751,000)
Cost of product sales
Gains (losses) before taxes recognized on the derivative instruments designated as cash flow hedges in OCI and net earnings (loss)
Gain (loss) recognized in OCI on foreign exchange currency contracts		4,638,000	(14,673,000)	12,060,000	(13,816,000)
Gain (loss) reclassified from accumulated OCI into earnings (loss) on foreign exchange currency contracts	[1]	(2,342,000)	661,000	(4,028,000)	1,279,000
Other income/expense
Gains (losses) before taxes recognized on the derivative instruments designated as cash flow hedges in OCI and net earnings (loss)
Gain (loss) recognized in OCI on foreign exchange currency contracts		0	(785,000)	2,000	(996,000)
Gain (loss) reclassified from accumulated OCI into earnings (loss) on foreign exchange currency contracts	[1]	0	14,000	(201,000)	93,000
Interest expense
Gains (losses) before taxes recognized on the derivative instruments designated as cash flow hedges in OCI and net earnings (loss)
Gain (loss) recognized in OCI on interest rate swap		37,000	(77,000)	105,000	(277,000)
Gain (loss) reclassified from accumulated OCI into earnings (loss) on interest rate swap	[1]	31,000	(26,000)	39,000	(62,000)
Interest income
Gains (losses) before taxes recognized on the derivative instruments designated as cash flow hedges in OCI and net earnings (loss)
Amount of ineffectiveness recognized in net earnings (loss) on foreign exchange currency contracts		$ 800,000	$ 900,000	$ 1,400,000	$ 1,500,000

[1] The Company recognized gains of $0.8 million and $1.4 million resulting from the ineffective portion related to foreign exchange currency contracts in interest income during the three and six months ended August 4, 2018, respectively. The Company recognized gains of $0.9 million and $1.5 million resulting from the ineffective portion related to foreign exchange currency contracts in interest income during the three and six months ended July 29, 2017, respectively. There was no ineffectiveness recognized related to the interest rate swap during the three and six months ended August 4, 2018 and July 29, 2017.