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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Cash outflows made since the inception of the environmental liability to date for environmental remediation activities.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Total expected property, plant, and equipment expenditures related to a specific project.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Total costs originally accrued at the date the reserve for environmental loss contingencies was originally established in 1995.

No definition available.

Name:	strt_OriginalAccrualEstablishedForEnvironmentalLossContingencies
Namespace Prefix:	strt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
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-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Period Type:	instant

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.

No definition available.