Fair Value Measurements - Additional Information (Detail) - Level 3 [Member] |
12 Months Ended |
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Dec. 31, 2017 | |
| Fair Value, Option, Qualitative Disclosures Related to Election [Line Items] | |
| Fair value interest rate spreads, minimum | 1.00% |
| Fair value interest rate spreads, maximum | 4.00% |
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- Definition Fair Value Interest Rate Spreads Maximum No definition available.
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- Definition Fair Value Interest Rate Spreads Minimum 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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- Details
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