Description of Business and Summary of Significant Accounting Policies Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 28, 2017	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017	Feb. 29, 2016
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	$ 130	$ 46	$ (48)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	0	0	0
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(41,831)	(16,222)	(13,027)	$ (41,831)	$ (38,637)
Accumulated Other Comprehensive Income (Loss), Debt Securities, Available-for-sale, Adjustment, after Tax	(98)	0	(24)	(98)	(81)
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax	(2,282)	(798)	(786)	(2,282)	(2,102)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	313	76	(385)	313	103
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(28)	(61)	185
Accumulated Other Comprehensive Income (Loss), Net of Tax	(43,898)	(16,944)	(14,222)	(43,898)	$ (40,717)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(3,195)	18,065
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax		(3,195)	28,804	(3,194)
Other Comprehensive Income (Loss), before Reclassifications, before Tax		(2,755)	16,233	(2,649)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax		0	10,739	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		452	(1,358)	742
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax		(12)	(459)	(180)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Reclassification Adjustments, after Tax		0	(15)	(17)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		24	(89)	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		33	13,443	(532)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax		0	(1,955)	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		9	660	(532)
Other Comprehensive Income (Loss), Net of Tax	3,181	2,722	(29,676)	3,181
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	210	461	(698)	210
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	180	12	(1,496)	180
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax		24	74	$ (17)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	(106)	21	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	$ (97)	$ (152)	$ (645)
Minimum [Member]
Foreign currency variance	(2.00%)	2.00%	(13.00%)
Maximum [Member]
Foreign currency variance	10.00%	7.00%	(3.00%)
Discontinued Operations [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax			$ (71)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax			(501)
Discontinued Operations, Disposed of by Sale [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax			(384)
Canada, Dollars
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	$ 176	$ (240)	250
Euro Member Countries, Euro
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(3,200)	(2,876)	17,559
Mexico, Pesos
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(142)	(18)	71
United States of America, Dollars
Adjustment for Long-term Intercompany Transactions, Net of Tax	(2,320)	(1,064)	12,488
Other Currency [Member]
Adjustment for Long-term Intercompany Transactions, Net of Tax	$ (874)	$ (2,131)	5,577
Hirschmann [Member]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax			9,911
Hirschmann [Member] | Foreign Currency Gain (Loss) [Member]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax			$ 828