CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Consolidated net income	$ 22.3	$ 27.5	$ 57.1	$ 63.5
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(9.0)	(2.4)	0.8	(30.3)
Pension and postretirement plan adjustments	1.3	1.5	2.6	3.0
Cash flow hedges:
Net derivative losses arising during the period	(0.8)	0.0	(0.8)	0.0
Total other comprehensive income (loss), net of tax	(8.5)	(0.9)	2.6	(27.3)
Total comprehensive income including non-controlling interests	13.8	26.6	59.7	36.2
Comprehensive income attributable to non-controlling interest	(0.7)	(0.7)	(1.8)	(1.7)
Comprehensive income attributable to MTI	$ 13.1	$ 25.9	$ 57.9	$ 34.5