Derivative Financial Instruments (Details 3) - USD ($)		3 Months Ended		6 Months Ended
		Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
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)		4,948,000	(3,773,000)	5,400,000	7,252,000
Net gains (losses) from changes in cash flow hedges		(13,093,000)	4,617,000	(12,969,000)	(5,263,000)
Net gains reclassified to earnings (loss)		(606,000)	(881,000)	(1,182,000)	(2,026,000)
Ending balance loss		(8,751,000)	(37,000)	(8,751,000)	(37,000)
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		(14,673,000)	5,762,000	(13,816,000)	(5,650,000)
Gain reclassified from accumulated OCI into earnings (loss) on foreign exchange currency contracts	[1]	661,000	1,141,000	1,279,000	2,576,000
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		(785,000)	343,000	(996,000)	(356,000)
Gain reclassified from accumulated OCI into earnings (loss) on foreign exchange currency contracts	[1]	14,000	49,000	93,000	81,000
Interest expense
Gains (losses) before taxes recognized on the derivative instruments designated as cash flow hedges in OCI and net earnings (loss)
Loss recognized in OCI on interest rate swap		(77,000)	(685,000)	(277,000)	(817,000)
Loss reclassified from accumulated OCI into earnings (loss) on interest rate swap	[1]	(26,000)	(59,000)	(62,000)	(110,000)
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		$ 900,000	$ 100,000	$ 1,500,000	$ 500,000

[1] 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. The Company recognized gains of $0.1 million and $0.5 million resulting from the ineffective portion related to foreign exchange currency contracts in interest income during the three and six months ended July 30, 2016, respectively. There was no ineffectiveness recognized related to the interest rate swap during the three and six months ended July 29, 2017 and July 30, 2016.