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Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Details) | 12 Months Ended
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Dec. 31, 2018
Leasehold Improvements |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset, description | Period of the lease or useful life, if shorter
Minimum | Buildings And Land Improvements |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 5 years
Minimum | Machinery and Equipment |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 3 years
Minimum | Trucks and Automobiles |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 3 years
Minimum | Furniture and Fixtures |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 3 years
Minimum | Computers and Hardware |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 3 years
Maximum | Buildings And Land Improvements |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 40 years
Maximum | Machinery and Equipment |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 25 years
Maximum | Trucks and Automobiles |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 10 years
Maximum | Furniture and Fixtures |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 20 years
Maximum | Computers and Hardware |
Property Plant And Equipment [Line Items] |
Estimated useful life of asset (in years) | 10 years

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
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- 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
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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