Description of Business and Summary of Significant Accounting Policies Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	$ 0	$ 0	$ 0
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(41,831)	(38,637)	(32,935)	$ 235
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(98)	(81)	(101)	(74)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(2,282)	(2,102)	(2,742)	(1,319)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	313	103	2,543	(715)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(43,898)	(40,717)	(33,235)	$ (1,873)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(3,194)	(5,702)	(33,170)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(2,649)	(5,014)	(30,982)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	0	0	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	742	28	3,638
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	(180)	640	(1,423)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	(17)	20	(27)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(532)	(2,468)	(380)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax	0	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(532)	(2,468)	(380)
Other Comprehensive Income (Loss), Net of Tax	(3,181)	(7,482)	(31,362)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	210	(2,440)	3,258
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(180)	640	(1,423)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(17)	20	(27)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	(106)	312	678
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(97)	(636)	1,240
Euro Member Countries, Euro | Foreign Currency Gain (Loss) [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(3,200)	(4,177)	(31,173)
Euro Member Countries, Euro | Mexico, Pesos
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(142)	(692)
Euro Member Countries, Euro | various currency [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(28)	(45)	(151)
Canada, Dollars | Foreign Currency Gain (Loss) [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	176	(788)	(1,026)
foreign currency translation gain (loss) [Member] | Foreign Currency Gain (Loss) [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(874)	(3,992)	(10,720)
foreign currency remeasurement gain (loss) [Member] | Foreign Currency Gain (Loss) [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	$ (1,982)	$ (2,722)	$ (20,537)
Minimum [Member]
Foreign currency variance	(2.00%)	3.00%	13.00%
Maximum [Member]
Foreign currency variance	10.00%	21.00%	21.00%