Shareholders' Equity (Debt Component) (Details)	3 Months Ended
Jul. 02, 2016 USD ($) $ / per_TEU	Sep. 29, 2018
Debt Instrument [Line Items]
Fair value price per TEU (in dollars per TEU)	100
Tangible Equity Units Senior Amortizing Note [Member]
Debt Instrument [Line Items]
Principal amount \| $	$ 27,386,000
Principal amount per note	23.8136
Periodic payment per note, after initial payment \| $	$ 2.1875
Interest rate, percentage	8.75%	8.75%
Fair value price per TEU (in dollars per TEU)	100

Debt Instrument Face Amount Per Note

No definition available.

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Namespace Prefix:	mtsc_
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Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Periodic Payment Per Note, After Initial Payment

+ References

No definition available.

+ Details

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Namespace Prefix:	mtsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Tangible Equity Units, Issued, Stated Amount Per Unit

+ References

No definition available.

+ Details

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Namespace Prefix:	mtsc_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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