REVENUE, CONTRACT ASSETS AND LIABILITIES AND OTHER CONTRACT MATTERS - Contract Assets and Liabilities (Details) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Jun. 30, 2019
USD ($)
vessel
|
Jun. 30, 2018
USD ($)
|
Jun. 30, 2019
USD ($)
vessel
|
Jun. 30, 2018
USD ($)
|
Dec. 31, 2018
USD ($)
vessel
|
Mar. 31, 2018
vessel
|
|
| Revenue from Contract with Customer [Abstract] | ||||||
| Contract assets | $ 51,334 | $ 51,334 | $ 29,982 | |||
| Contract liabilities | (13,823) | (13,823) | (16,845) | |||
| Contracts in progress, net | $ 37,511 | $ 37,511 | $ 13,137 | |||
| Number of multi-purpose service vessels | vessel | 2 | 2 | 2 | 2 | ||
| Contract with customer, liability, revenue recognized | $ 7,600 | $ 4,100 | $ 13,900 | $ 4,900 | ||
| Contract with customer, liability, accrued contract losses, current | $ 2,000 | $ 2,000 | $ 2,400 | |||
| X | ||||||||||
- Definition Construction In Progress, Number Of Multi-Purpose Service Vessels No definition available.
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| X | ||||||||||
- Definition Contract With Customer, Asset (Liability), Net, Current No definition available.
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| X | ||||||||||
- Definition Contract With Customer, Liability, Accrued Contract Losses, Current No definition available.
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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