Derivative Financial Instruments (Details 3) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017
Net after-tax derivative activity recorded in accumulated other comprehensive income (loss)
Beginning balance gain (loss)		$ (142)	$ (8,751)	$ (14,369)	$ 5,400
Net gains (losses) from changes in cash flow hedges		1,596	2,749	12,175	(10,220)
Net (gains) losses reclassified into loss		1,419	235	5,067	(947)
Ending balance gain (loss)		2,873	(5,767)	2,873	(5,767)
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		1,630	3,215	13,690	(10,601)
Gain (loss) reclassified from accumulated OCI into earnings (loss) on foreign exchange currency contracts	[1]	(1,618)	81	(5,646)	1,360
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	38	2	(958)
Gain (loss) reclassified from accumulated OCI into earnings (loss) on foreign exchange currency contracts	[1]	0	(337)	(201)	(244)
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		203	134	308	(143)
Gain (loss) reclassified from accumulated OCI into earnings (loss) on interest rate swap	[1]	21	(57)	60	(119)
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		$ (600)	$ (500)	$ (2,000)	$ (2,000)

[1] The Company recognized gains of $0.6 million and $2.0 million resulting from the ineffective portion related to foreign exchange currency contracts in interest income during the three and nine months ended November 3, 2018, respectively. The Company recognized gains of $0.5 million and $2.0 million resulting from the ineffective portion related to foreign exchange currency contracts in interest income during the three and nine months ended October 28, 2017, respectively. There was no ineffectiveness recognized related to the interest rate swap during the three and nine months ended November 3, 2018 and October 28, 2017.