Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Net loss	$ (13,436)	$ (10,503)
Other comprehensive income (loss), net of tax:
Change in accumulated translation adjustment	8,486	617
Change in unrealized gain (loss) on derivative instruments	30	(61)
Change in pension liability	3	(2)
Other comprehensive income	8,519	554
Comprehensive loss	(4,917)	(9,949)
Net loss attributable to noncontrolling interest	0	(618)
Change in accumulated translation adjustment attributable to the noncontrolling interest	0	50
Comprehensive loss attributable to the noncontrolling interest	0	(568)
Comprehensive loss attributable to Mentor Graphics shareholders	$ (4,917)	$ (9,381)