Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016	Feb. 28, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (13,992)		$ (13,992)		$ (41,831)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax			(1,422)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax			(265)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax			(12)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax			0
Total accumulated other comprehensive loss	(15,478)		(15,478)		(43,898)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax			17,100
Other Comprehensive Income (Loss) before Reclassifications, Tax			27,839
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(873)		(873)		313
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(592)		(592)		(2,282)
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(21)		(21)		$ (98)
Other Comprehensive Income (Loss), before Reclassifications, before Tax			15,401
Translation Adjustment Functional to Reporting Currency, Loss (Gain), Reclassified to Earnings, Net of Tax			10,739
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			13,019
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			236
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax			1,955
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax			89
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(134)	$ (21)	(1,186)	$ (512)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	1,810	6	1,690	(52)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	81	(3)	77	(8)
Other Comprehensive Income (Loss), Net of Tax	22,237	(698)	28,420	2,944
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax			0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(207)		(673)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	$ 20,480	$ (680)	27,839	$ 3,516
foreign currency translation gain (loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax			5,029
foreign currency remeasurement gain (loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax			12,070
Discontinued Operations [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax			(501)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			(71)
Discontinued Operations, Disposed of by Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Translation Adjustment Functional to Reporting Currency, Loss (Gain), Reclassified to Earnings, Net of Tax			828
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			335
Loans Payable [Member] | Discontinued Operations, Disposed of by Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Translation Adjustment Functional to Reporting Currency, Loss (Gain), Reclassified to Earnings, Net of Tax			$ 9,911