Commitments and Contingencies - Additional Information (Detail) |
Sep. 30, 2018 |
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| Minimum [Member] | |
| Commitment And Contingencies [Line Items] | |
| Operating lease expiration period | 10 years |
| Operating lease renewal period | 1 year |
| Maximum [Member] | |
| Commitment And Contingencies [Line Items] | |
| Operating lease expiration period | 25 years |
| Operating lease renewal period | 5 years |
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- Definition Commitment And Contingencies [Line Items] No definition available.
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- Definition Term of lessor's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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