v3.10.0.1

Shipbuilding Contracts - Additional Information (Detail) t in Thousands |  | 1 Months Ended |
--- | --- | --- | ---
Feb. 15, 2016 USD ($) subsidiary | Jun. 30, 2018 shares | Nov. 30, 2017 | Apr. 30, 2013 contract vessel subsidiary t | Sep. 30, 2018 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |
Number of special purpose subsidiaries | subsidiary | 4 |  |  | 4 |
STX Offshore And Shipbuilding Co., Ltd |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Weight capacity | t |  |  |  | 113 |
Number of shipbuilding contracts | contract |  |  |  | 4 |
Litigation settlement, amount awarded from other party | $ | $ 8,900,000 |  |  |  |
Litigation settlement, amount receivable in cash, in percent |  |  | 7.00% |  |
Litigation settlement, amount received in equity, in percent |  |  | 93.00% |  |
Number of shares awarded in rehabilitation plan (in shares) | shares |  | 315,856 |  |  |
Value of shares acquired in bankruptcy | $ |  |  |  |  | $ 0
STX Offshore And Shipbuilding Co., Ltd | Orders to Construct Newbuildings |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Number of vessels | contract |  |  |  | 4 |
STX Offshore And Shipbuilding Co., Ltd | Additional Order Option Maximum |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Number of vessels | vessel |  |  |  | 12 |

X
- Definition Litigation Settlement, Amount Receivable in Cash, in Percent + References No definition available. + Details
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X
- Definition Litigation Settlement, Amount Received in Equity, in Percent + References No definition available. + Details
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Data Type: | num:percentItemType
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X
- Definition Number Of Shipbuilding Contracts + References No definition available. + Details
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X
- Definition Number Of Vessels + References No definition available. + Details
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- Definition Number of Shares Awarded in Rehabilitation Plan + References No definition available. + Details
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- Definition Number of special purpose subsidiaries + References No definition available. + Details
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- Definition Value of Shares Acquired in Bankruptcy + References No definition available. + Details
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- Definition Weight Capacity + References No definition available. + Details
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Balance Type: | na
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- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + 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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- Details
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- Details
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- Details
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Period Type: |