Represents the business combination stock conversion ratio.

No definition available.

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- Definition

Represents the property and equipment acquired in Business Combination.

+ References

No definition available.

+ Details

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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- Details

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Note 2 - Business Combination (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 397,038	$ 486,549	$ 406,520
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total	360,701
Gulf Mark Term Loan Facility [Member]
Long-term Line of Credit, Total	100,000
Repayments of Lines of Credit	100,000
Gulf Mark Offshore Inc [Member]
Revenue from Contract with Customer, Excluding Assessed Tax, Total			12,700
Business Combination, Consideration Transferred, Total	$ 385,500		30,600
Business Combination Stock Conversion Ratio	1.1
Property And Equipment Acquired In Business Combination	65
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total	$ 361,000
Property, Plant and Equipment, Useful Life (Year)	20 years
Gulf Mark Offshore Inc [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	1 year
Gulf Mark Offshore Inc [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	18 years
Gulf Mark Offshore Inc [Member] \| Gulf Mark Term Loan Facility [Member] \| General and Administrative Expense [Member]
Business Combination, Acquisition Related Costs			$ 9,000