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Operations and Summary of Significant Accounting Policies - Amortizable Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Amortizable Intangible assets
Intangible Assets, Net (Excluding Goodwill)	$ 32,587,000us-gaap_IntangibleAssetsNetExcludingGoodwill	$ 41,773,000us-gaap_IntangibleAssetsNetExcludingGoodwill
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the beginning of the year	67,737,000us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated amortization, balance at the beginning of the year	(25,964,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Amortization	7,200,000us-gaap_AmortizationOfIntangibleAssets	7,100,000us-gaap_AmortizationOfIntangibleAssets	7,800,000us-gaap_AmortizationOfIntangibleAssets
Foreign exchange		799,000us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments
Gross carrying amount, balance at the end of the year	58,874,000us-gaap_FiniteLivedIntangibleAssetsGross	67,737,000us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated amortization, balance at the end of the year	(26,287,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization	(25,964,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Estimated future amortization of intangible assets
2015	6,090,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
2016	5,848,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017	4,105,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018	3,136,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019	3,107,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Thereafter	8,167,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
Total	30,453,000us-gaap_FiniteLivedIntangibleAssetsNet
North America
Amortizable Intangible assets
Intangible Assets, Net (Excluding Goodwill)	14,736,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = ssd_NorthAmericaSegmentMember	18,611,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = ssd_NorthAmericaSegmentMember
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the end of the year	29,455,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_StatementBusinessSegmentsAxis = ssd_NorthAmericaSegmentMember	34,520,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_StatementBusinessSegmentsAxis = ssd_NorthAmericaSegmentMember
Accumulated amortization, balance at the end of the year	(14,719,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_StatementBusinessSegmentsAxis = ssd_NorthAmericaSegmentMember	(15,909,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_StatementBusinessSegmentsAxis = ssd_NorthAmericaSegmentMember
Europe
Amortizable Intangible assets
Intangible Assets, Net (Excluding Goodwill)	17,851,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = ssd_EuropeSegmentMember	23,162,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = ssd_EuropeSegmentMember
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the end of the year	29,419,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_StatementBusinessSegmentsAxis = ssd_EuropeSegmentMember	33,217,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_StatementBusinessSegmentsAxis = ssd_EuropeSegmentMember
Accumulated amortization, balance at the end of the year	(11,568,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_StatementBusinessSegmentsAxis = ssd_EuropeSegmentMember	(10,055,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_StatementBusinessSegmentsAxis = ssd_EuropeSegmentMember
Patents
Amortizable Intangible assets
Intangible Assets, Net (Excluding Goodwill)	181,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	701,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	1,307,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the beginning of the year	6,689,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	6,684,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Accumulated amortization, balance at the beginning of the year	(5,988,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	(5,377,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Amortization	506,000us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	611,000us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Foreign exchange	(14,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	5,000us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Removal of fully amortized asset, gross	(4,917,000)ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Accumulated amortization of removal of fully amortized asset	4,917,000ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net	0ssd_FiniteLivedIntangibleAssetsRemovalofFullyAmortizedAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Gross carrying amount, balance at the end of the year	1,758,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	6,689,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Accumulated amortization, balance at the end of the year	(1,577,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember	(5,988,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Unpatented Technology
Amortizable Intangible assets
Finite-Lived Intangible Assets, Period Increase (Decrease)	3,300,000us-gaap_FiniteLivedIntangibleAssetsPeriodIncreaseDecrease / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Intangible Assets, Net (Excluding Goodwill)	15,132,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	13,720,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	3,344,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the beginning of the year	18,977,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	5,361,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Accumulated amortization, balance at the beginning of the year	(5,257,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	(2,017,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Disposal, Gross carrying amount		(1,530,000)ssd_FiniteLivedIntangibleAssetsDisposedGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Finite Lived Intangible Assets Disposed, Accumulated Amortization		158,000ssd_FiniteLivedIntangibleAssetsDisposedAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Finite Lived Intangible Assets Disposed, Net		(1,372,000)ssd_FiniteLivedIntangibleAssetsDisposedNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Amortization	(2,408,000)us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	(3,398,000)us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Finite-Lived Intangible Assets, Translation Adjustments	(1,479,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Foreign exchange	0us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	799,000us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Reclassifications	5,299,000ssd_FiniteLivedIntangibleAssetsReclassifications / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	14,347,000ssd_FiniteLivedIntangibleAssetsReclassifications / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Gross carrying amount, balance at the end of the year	22,797,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	18,977,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Accumulated amortization, balance at the end of the year	(7,665,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember	(5,257,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnpatentedTechnologyMember
Non-Compete Agreements, Trademarks and Other
Amortizable Intangible assets
Intangible Assets, Net (Excluding Goodwill)	5,465,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	10,001,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	33,949,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the beginning of the year	13,555,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	36,951,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Accumulated amortization, balance at the beginning of the year	(3,554,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	(3,002,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Acquisition	100,000us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	4,130,000us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Disposal, Gross carrying amount		(200,000)ssd_FiniteLivedIntangibleAssetsDisposedGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Finite Lived Intangible Assets Disposed, Accumulated Amortization		74,000ssd_FiniteLivedIntangibleAssetsDisposedAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Finite Lived Intangible Assets Disposed, Net		(126,000)ssd_FiniteLivedIntangibleAssetsDisposedNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Amortization	(2,020,000)us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	(636,000)us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Foreign exchange	(62,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	(728,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Reclassifications	(2,554,000)ssd_FiniteLivedIntangibleAssetsReclassifications / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	(26,588,000)ssd_FiniteLivedIntangibleAssetsReclassifications / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Removal of fully amortized asset, gross	(200,000)ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	(10,000)ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Accumulated amortization of removal of fully amortized asset	200,000ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	10,000ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net	0ssd_FiniteLivedIntangibleAssetsRemovalofFullyAmortizedAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	0ssd_FiniteLivedIntangibleAssetsRemovalofFullyAmortizedAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Gross carrying amount, balance at the end of the year	10,839,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	13,555,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Accumulated amortization, balance at the end of the year	(5,374,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember	(3,554,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Customer Relationships
Amortizable Intangible assets
Intangible Assets, Net (Excluding Goodwill)	9,675,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	11,685,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	11,998,000us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount, balance at the beginning of the year	22,849,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	20,697,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Accumulated amortization, balance at the beginning of the year	(11,164,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	(8,699,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Amortization	(2,225,000)us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	(2,465,000)us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Finite-Lived Intangible Assets, Translation Adjustments	(443,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	229,000us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Foreign exchange		229,000us-gaap_FiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Reclassifications	658,000ssd_FiniteLivedIntangibleAssetsReclassifications / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	1,923,000ssd_FiniteLivedIntangibleAssetsReclassifications / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Removal of fully amortized asset, gross	(1,718,000)ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Accumulated amortization of removal of fully amortized asset	1,718,000ssd_FiniteLivedIntangibleAssetsRemovalOfFullyAmortizedAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net	0ssd_FiniteLivedIntangibleAssetsRemovalofFullyAmortizedAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Gross carrying amount, balance at the end of the year	21,346,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	22,849,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Accumulated amortization, balance at the end of the year	(11,671,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember	(11,164,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Bierbach GmbH And Co. KG | Non-Compete Agreements, Trademarks and Other
Amortizable Intangible assets
Adjustment to intangible asset from business acquisition		500,000us-gaap_FiniteLivedIntangibleAssetsPurchaseAccountingAdjustments / us-gaap_BusinessAcquisitionAxis = ssd_BierbachGmbHAndCo.KGMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ssd_NoncompeteAgreementsTrademarksAndOtherMember
Bierbach GmbH And Co. KG | Customer Relationships
Amortizable Intangible assets
Adjustment to intangible asset from business acquisition	$ 600,000us-gaap_FiniteLivedIntangibleAssetsPurchaseAccountingAdjustments / us-gaap_BusinessAcquisitionAxis = ssd_BierbachGmbHAndCo.KGMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember

X

- Definition

Accumulated amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life disposed.

+ References

No definition available.

+ Details

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X

- Definition

Amount before accumulated amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life disposed.

+ References

No definition available.

+ Details

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X

- Definition

Amount net of accumulated amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life disposed.

+ References

No definition available.

+ Details

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X

- Definition

Represents the finite-lived intangible assets reclassified during the period.

+ References

No definition available.

+ Details

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X

- Definition

Represents the accumulated amortization of removal of fully amortized finite-lived intangible assets.

+ References

No definition available.

+ Details

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X

- Definition

Represents the gross carrying value for removal of fully amortized finite-lived intangible assets.

+ References

No definition available.

+ Details

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X

- Definition

Finite Lived Intangible Assets Removal of Fully Amortized Assets, Net

+ References

No definition available.

+ Details

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X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

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