Related Parties - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| SFC [Member] | |||
| Related Party Transaction [Line Items] | |||
| Aggregate annual rent for leased aircraft usage | $ 0.6 | $ 0.5 | $ 0.9 |
| Oil Chem Research Company [Member] | |||
| Related Party Transaction [Line Items] | |||
| Purchase from related party | 2.1 | 2.1 | 2.0 |
| Speedway Motorsports, Inc. [Member] | |||
| Related Party Transaction [Line Items] | |||
| Aggregate annual rent for leased aircraft usage | $ 0.8 | $ 0.6 | $ 0.6 |
| Minimum [Member] | Mr. Marcus G. Smith [Member] | SFC [Member] | |||
| Related Party Transaction [Line Items] | |||
| Ownership percentage | 10.00% | ||
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- Definition Beneficial ownership interest percentage. No definition available.
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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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. No definition available.
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- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. No definition available.
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