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Consolidated Balance Sheet (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Statement of Financial Position [Abstract] |  |
Trade receivables, allowance for doubtful accounts | $ 7,821 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | $ 7,306 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Percentage of cumulative preferred stock | 4.50%msa_PercentageOfCumulativePreferredStock | 4.50%msa_PercentageOfCumulativePreferredStock
Preferred stock, par value | $ 50 us-gaap_PreferredStockParOrStatedValuePerShare | $ 50 us-gaap_PreferredStockParOrStatedValuePerShare
Common stock, par value | $ 0 us-gaap_CommonStockNoParValue | $ 0 us-gaap_CommonStockNoParValue

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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Face amount per share of no-par value common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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