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General (Details)	Mar. 31, 2015 production_locations country
Nature of Business [Line Items]
Number of countries in which entity operates	90us-gaap_NumberOfCountriesInWhichEntityOperates
Number of production locations	17swm_NumberOfProductionLocations
China [Member]
Nature of Business [Line Items]
Equity method investment, ownership percentage	50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_EntityByLocationAxis = swm_ChinaMember
Number of joint ventures	2swm_NumberOfJointVentures / dei_EntityByLocationAxis = swm_ChinaMember

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- Definition

Number of Joint Ventures

+ References

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- Definition

Number of production location worldwide. The Company has mills in the United States, France, the Philippines, Indonesia, Brazil and Poland.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

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