XML 65 R54.htm IDEA: XBRL DOCUMENT v3.19.2

Segment Information - Percentage of Total Sales by Product Group (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue from External Customer [Line Items]
Revenues	$ 349,675	$ 339,331	$ 675,713	$ 665,225
Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	74,907	75,283	150,354	149,901
Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Revenues	70,310	63,599	$ 130,709	124,530
Concentration risk percentage			19.00%
Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Revenues	48,799	46,676	$ 92,376	91,159
Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	42,343	41,307	83,069	83,534
Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	38,921	39,639	74,665	74,594
Fall Protection
Revenue from External Customer [Line Items]
Revenues	31,629	26,052	61,756	51,757
Other
Revenue from External Customer [Line Items]
Revenues	$ 42,766	$ 46,775	$ 82,784	$ 89,750
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%	22.00%	22.00%	23.00%
Sales | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Concentration risk percentage	20.00%	19.00%		19.00%
Sales | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Concentration risk percentage	14.00%	14.00%	14.00%	14.00%
Sales | Portable Gas Detection
Revenue from External Customer [Line Items]
Concentration risk percentage	12.00%	12.00%	12.00%	13.00%
Sales | Industrial Head Protection
Revenue from External Customer [Line Items]
Concentration risk percentage	11.00%	12.00%	12.00%	11.00%
Sales | Fall Protection
Revenue from External Customer [Line Items]
Concentration risk percentage	9.00%	8.00%	9.00%	8.00%
Sales | Other
Revenue from External Customer [Line Items]
Concentration risk percentage	12.00%	13.00%	12.00%	12.00%
Americas
Revenue from External Customer [Line Items]
Revenues	$ 231,389	$ 215,339	$ 445,076	$ 424,468
Americas | Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	50,584	46,678	101,489	96,012
Americas | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Revenues	39,118	33,128	72,048	65,654
Americas | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Revenues	39,091	37,779	74,155	72,533
Americas | Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	33,844	27,137	55,458	55,899
Americas | Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	25,045	31,151	58,258	58,992
Americas | Fall Protection
Revenue from External Customer [Line Items]
Revenues	18,720	15,094	36,680	29,203
Americas | Other
Revenue from External Customer [Line Items]
Revenues	$ 24,987	$ 24,372	$ 46,988	$ 46,175
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%	22.00%	23.00%	23.00%
Americas | Sales | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Concentration risk percentage	17.00%	15.00%	16.00%	15.00%
Americas | Sales | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Concentration risk percentage	17.00%	18.00%	17.00%	17.00%
Americas | Sales | Portable Gas Detection
Revenue from External Customer [Line Items]
Concentration risk percentage	13.00%	13.00%	12.00%	13.00%
Americas | Sales | Industrial Head Protection
Revenue from External Customer [Line Items]
Concentration risk percentage	12.00%	14.00%	13.00%	14.00%
Americas | Sales | Fall Protection
Revenue from External Customer [Line Items]
Concentration risk percentage	8.00%	7.00%	8.00%	7.00%
Americas | Sales | Other
Revenue from External Customer [Line Items]
Concentration risk percentage	11.00%	11.00%	11.00%	11.00%
International
Revenue from External Customer [Line Items]
Revenues	$ 118,286	$ 123,992	$ 230,637	$ 240,757
International | Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	24,323	28,605	48,865	53,889
International | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Revenues	31,192	30,471	58,661	58,876
International | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Revenues	9,708	8,897	18,221	18,626
International | Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	8,499	14,170	27,611	27,635
International | Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	13,876	8,488	16,407	15,602
International | Fall Protection
Revenue from External Customer [Line Items]
Revenues	12,909	10,958	25,076	22,554
International | Other
Revenue from External Customer [Line Items]
Revenues	$ 17,779	$ 22,403	$ 35,796	$ 43,575
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	21.00%	23.00%	21.00%	22.00%
International | Sales | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Concentration risk percentage	26.00%	25.00%	25.00%	24.00%
International | Sales | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Concentration risk percentage	8.00%	7.00%	8.00%	8.00%
International | Sales | Portable Gas Detection
Revenue from External Customer [Line Items]
Concentration risk percentage	7.00%	11.00%	12.00%	11.00%
International | Sales | Industrial Head Protection
Revenue from External Customer [Line Items]
Concentration risk percentage	12.00%	7.00%	7.00%	6.00%
International | Sales | Fall Protection
Revenue from External Customer [Line Items]
Concentration risk percentage	11.00%	9.00%	11.00%	9.00%
International | Sales | Other
Revenue from External Customer [Line Items]
Concentration risk percentage	15.00%	18.00%	16.00%	20.00%

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

+ 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

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_ProductOrServiceAxis=msa_BreathingApparatusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=msa_FixGasFlameDetectionInstrumentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=msa_FirefighterHelmetsandProtectiveApparelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=msa_PortableInstrumentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=msa_HeadProtectionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=msa_FallProtectionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_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=srt_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: