Warranty Obligations (Narrative) (Details)	3 Months Ended
Jan. 02, 2016
Warranty Obligations [Abstract]
Life of warranty obligations for sales that include installation services, maximum	12 months
Product obligation period, maximum	12 months
Number of previous months historical warranty claims used to calculate warranty expense percentage	12 months

The Company records general warranty provisions based on an estimated warranty expense percentage applied to current period revenue. The percentage applied reflects historical warranty claims experience over the preceding twelve-month period. Both the experience percentage and the warranty liability are evaluated on an ongoing basis for adequacy

No definition available.

Name:	mtsc_NumberOfPreviousMonthsHistoricalWarrantyClaimsUsedToCalculateWarrantyExpensePercentage
Namespace Prefix:	mtsc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration