XML 67 R39.htm IDEA: XBRL DOCUMENT
v3.20.4

Long-Lived Assets - Geographic Areas (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Long-Lived Assets by Geographic Areas [Line Items] |  |  |
Total long-lived Assets | $ 1,465.1 | $ 1,342.7 | $ 1,005.3
United States |  |  |
Long-Lived Assets by Geographic Areas [Line Items] |  |  |
Total long-lived Assets | 1,344.9 | 1,238.4 | 947.7
Canada and Mexico |  |  |
Long-Lived Assets by Geographic Areas [Line Items] |  |  |
Total long-lived Assets | 85.1 | 72.2 | 43.0
North America |  |  |
Long-Lived Assets by Geographic Areas [Line Items] |  |  |
Total long-lived Assets | 1,430.0 | 1,310.6 | 990.7
All other foreign countries |  |  |
Long-Lived Assets by Geographic Areas [Line Items] |  |  |
Total long-lived Assets | $ 35.1 | $ 32.1 | $ 14.6

X
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 + Details
Name: | us-gaap_NoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=fast_CanadaandMexicoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_NorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=fast_NonNorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |