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Summary of Significant Accounting Policies and Basis of Presentation (Detail 1) | Sep. 30, 2018
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Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-10-01 |
Basis Of Presentation And Accounting Policies [Line Items] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-10-01 |
Basis Of Presentation And Accounting Policies [Line Items] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-01 |
Basis Of Presentation And Accounting Policies [Line Items] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-10-01 |
Basis Of Presentation And Accounting Policies [Line Items] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-10-01 |
Basis Of Presentation And Accounting Policies [Line Items] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-10-01 |
Basis Of Presentation And Accounting Policies [Line Items] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 months

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- Definition Basis of presentation and accounting policies. + References No definition available. + Details
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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045 + Details
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