XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Segment Information - Percentage of Total Sales by Product Group (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 339,331 | $ 288,775 | $ 665,225 | $ 554,540
Breathing Apparatus |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 75,283 | 70,393 | 149,901 | 138,638
Fixed Gas & Flame Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 63,599 | 60,175 | 124,530 | 110,956
Portable Gas Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 41,307 | 37,015 | 83,534 | 73,521
Industrial Head Protection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 39,639 | 35,997 | 74,594 | 66,873
Fall Protection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 26,052 | 25,512 | 51,757 | 47,455
Firefighter Helmets and Protective Apparel |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 46,676 | 14,061 | 91,159 | 28,466
Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 46,775 | $ 45,622 | $ 89,750 | $ 88,631
Sales |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 100.00% | 100.00% | 100.00% | 100.00%
Sales | Breathing Apparatus |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 22.00% | 24.00% | 23.00% | 25.00%
Sales | Fixed Gas & Flame Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 19.00% | 21.00% | 19.00% | 20.00%
Sales | Portable Gas Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 12.00% | 13.00% | 13.00% | 13.00%
Sales | Industrial Head Protection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 12.00% | 12.00% | 11.00% | 12.00%
Sales | Fall Protection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 8.00% | 9.00% | 8.00% | 9.00%
Sales | Firefighter Helmets and Protective Apparel |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 14.00% | 5.00% | 14.00% | 5.00%
Sales | Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 13.00% | 16.00% | 12.00% | 16.00%
Americas |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 215,339 | $ 174,960 | $ 424,468 | $ 341,528
Americas | Breathing Apparatus |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 46,678 | 45,269 | 96,012 | 93,959
Americas | Fixed Gas & Flame Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 33,128 | 30,660 | 65,654 | 58,639
Americas | Portable Gas Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 27,137 | 24,669 | 55,899 | 49,683
Americas | Industrial Head Protection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 31,151 | 28,205 | 58,992 | 52,964
Americas | Fall Protection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 15,094 | 14,262 | 29,203 | 25,490
Americas | Firefighter Helmets and Protective Apparel |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 37,779 | 5,676 | 72,533 | 11,778
Americas | Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 24,372 | $ 26,219 | $ 46,175 | $ 49,015
Americas | Sales |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 100.00% | 100.00% | 100.00% | 100.00%
Americas | Sales | Breathing Apparatus |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 22.00% | 26.00% | 23.00% | 28.00%
Americas | Sales | Fixed Gas & Flame Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 15.00% | 18.00% | 15.00% | 17.00%
Americas | Sales | Portable Gas Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 13.00% | 14.00% | 13.00% | 15.00%
Americas | Sales | Industrial Head Protection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 14.00% | 16.00% | 14.00% | 16.00%
Americas | Sales | Fall Protection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 7.00% | 8.00% | 7.00% | 7.00%
Americas | Sales | Firefighter Helmets and Protective Apparel |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 18.00% | 3.00% | 17.00% | 3.00%
Americas | Sales | Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 11.00% | 15.00% | 11.00% | 14.00%
International |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 123,992 | $ 113,815 | $ 240,757 | $ 213,012
International | Breathing Apparatus |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 28,605 | 25,124 | 53,889 | 44,679
International | Fixed Gas & Flame Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 30,471 | 29,515 | 58,876 | 52,317
International | Portable Gas Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 14,170 | 12,346 | 27,635 | 23,838
International | Industrial Head Protection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 8,488 | 7,792 | 15,602 | 13,909
International | Fall Protection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 10,958 | 11,250 | 22,554 | 21,965
International | Firefighter Helmets and Protective Apparel |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 8,897 | 8,385 | 18,626 | 16,688
International | Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 22,403 | $ 19,403 | $ 43,575 | $ 39,616
International | Sales |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 100.00% | 100.00% | 100.00% | 100.00%
International | Sales | Breathing Apparatus |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 23.00% | 22.00% | 22.00% | 21.00%
International | Sales | Fixed Gas & Flame Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 25.00% | 26.00% | 24.00% | 25.00%
International | Sales | Portable Gas Detection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 11.00% | 11.00% | 11.00% | 11.00%
International | Sales | Industrial Head Protection |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 7.00% | 7.00% | 6.00% | 7.00%
International | Sales | Fall Protection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 9.00% | 10.00% | 9.00% | 10.00%
International | Sales | Firefighter Helmets and Protective Apparel |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 7.00% | 7.00% | 8.00% | 8.00%
International | Sales | Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Concentration risk percentage | 18.00% | 17.00% | 20.00% | 18.00%

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_BreathingApparatusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_FixGasFlameDetectionInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_PortableInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_HeadProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_FallProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_FirefighterHelmetsandProtectiveApparelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=msa_OtherProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=msa_InternationalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |