The percentage reserved for accounts receivable from customers in deteriorating financial condition or bankruptcy.

No definition available.

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- Definition

The high end of the range of the required percentage voting interest to be held by the reporting entity to use the equity method of accounting to report investments, corporate joint ventures, partnerships and affiliated companies in its consolidated financial statements. If the reporting entity can exercise control over the operations and policies, accounting rules require consolidation of the investee's financial statements.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Represents the amount of inventory increased due to reclassification adjustment made to prior period financial statement amounts.

+ References

No definition available.

+ Details

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

- Details

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- Definition

Percentage of net sales attributed to services sales.

+ References

No definition available.

+ Details

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Namespace Prefix:	ssd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of investment made by the entity in United States Treasury securities and money market funds.

+ References

No definition available.

+ Details

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Namespace Prefix:	ssd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the number of variable interest entities (VIE's).

+ References

No definition available.

+ Details

Name:	ssd_VariableInterestEntityNumber
Namespace Prefix:	ssd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_AccountsReceivableNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Details

Name:	us-gaap_FinancialInstrumentsOwnedAtFairValueAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28360613&loc=d3e4542-108314

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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Balance Type:	na
Period Type:	duration

Operations and Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2011	Dec. 31, 2012 item
Operations and Summary of Significant Accounting Policies
High end of the range of the required percentage voting interest held to account for investments with the equity method of accounting	50.00%
Number of VIEs	0		0
Reclassification
Write down of excess and obsolete inventory		$ 700,000
Increase in inventory due to reclassification		700,000
Allowance for Doubtful Accounts
Percentage reserved for accounts receivable due from customers in deteriorating financial condition	100.00%
Fair Value of Financial Instruments
United States Treasury securities and money market funds included in cash equivalents	$ 117,571,000		$ 76,130,000
Minimum \| Software
Depreciation and Amortization
Estimated useful life	3 years
Minimum \| Machinery and equipment
Depreciation and Amortization
Estimated useful life	3 years
Minimum \| Buildings and site improvements
Depreciation and Amortization
Estimated useful life	15 years
Maximum
Revenue Recognition
Service sales as a percentage of net sales	1.00%
Maximum \| Software
Depreciation and Amortization
Estimated useful life	5 years
Maximum \| Machinery and equipment
Depreciation and Amortization
Estimated useful life	10 years
Maximum \| Buildings and site improvements
Depreciation and Amortization
Estimated useful life	45 years