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Consolidated Statement of Income - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Statement [Abstract] |  |  |
Net sales | $ 1,196,809,000 | $ 1,149,530,000 | $ 1,130,783,000
Cost of products sold | 656,411,000 | 625,887,000 | 629,680,000
Gross profit | 540,398,000 | 523,643,000 | 501,103,000
Selling, general and administrative |  |  |
Selling, general and administrative | 297,801,000 | 306,144,000 | 315,270,000
Research and development | 50,061,000 | 46,847,000 | 48,630,000
Restructuring charges (Note 2) | 17,632,000 | 5,694,000 | 12,258,000
Currency exchange losses, net | 5,127,000 | 766,000 | 2,204,000
Other operating expense (Note 19) | 126,432,000 | 0 | 0
Operating income | 43,345,000 | 164,192,000 | 122,741,000
Interest expense | 15,360,000 | 16,411,000 | 10,854,000
Other (income) loss, net (Note 15) | (1,790,000) | (4,130,000) | 861,000
Total other expense, net | 13,570,000 | 12,281,000 | 11,715,000
Income from continuing operations before income taxes | 29,775,000 | 151,911,000 | 111,026,000
Provision for income taxes (Note 9) | 2,819,000 | 57,804,000 | 44,407,000
Net income (loss), including portion attributable to noncontrolling interest |  |  |
Income from continuing operations | 26,956,000 | 94,107,000 | 66,619,000
(Loss) income from discontinued operations (Note 20) | 0 | (245,000) | 1,325,000
Net income | 26,956,000 | 93,862,000 | 67,944,000
Net (income) loss attributable to noncontrolling interests | (929,000) | (1,926,000) | 2,863,000
Net income attributable to MSA Safety Incorporated | 26,027,000 | 91,936,000 | 70,807,000
Amounts attributable to MSA Safety Incorporated common shareholders: |  |  |
Net income attributable to MSA Safety Incorporated | 26,027,000 | 92,691,000 | 69,590,000
(Loss) income from discontinued operations (Note 20) | $ 0 | $ (755,000) | $ 1,217,000
Basic |  |  |
Income from continuing operations | $ 0.68 | $ 2.47 | $ 1.86
(Loss) income from discontinued operations (dollars per share) | 0.00 | (0.02) | 0.03
Net income (dollars per share) | 0.68 | 2.45 | 1.89
Diluted |  |  |
Income from continuing operations | 0.67 | 2.44 | 1.84
(Loss) income from discontinued operations (dollars per share) | 0.00 | (0.02) | 0.03
Net income (dollars per share) | $ 0.67 | $ 2.42 | $ 1.87
Dividends per common share (dollars per share) | $ 1.38 | $ 1.31 | $ 1.27

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- Definition Total costs related to goods produced and sold during the reporting period. + 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(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591551-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 + Details
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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + 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 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + 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 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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