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- Definition

Percentage over par at which notes sold.

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No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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Long-Term Debt - Additional Information - Senior Unsecured Notes (Detail) $ in Millions		1 Months Ended		3 Months Ended	12 Months Ended
	Jan. 27, 2010 USD ($)	May 31, 2019 USD ($)	Nov. 30, 2015 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 vessel	Dec. 31, 2018 USD ($)	Dec. 31, 2014 USD ($)
Senior Notes (8.5%) due January 15, 2020
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate			8.50%		8.50%	8.50%
Debt instrument, principal amount	$ 450.0		$ 200.0
Percentage over par at which notes sold	99.20%		99.01%
Effective interest rate					8.67%
Repayments of senior debt		$ 460.9		$ 10.9		$ 84.1	$ 57.3
Debt Instrument, Redemption Price, Percentage					100.00%
US Treasury (UST) Interest Rate [Member] \| Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt instrument spread on variable rate					5000.00%
US Treasury (UST) Interest Rate [Member] \| Senior Notes (8.5%) due January 15, 2020
Debt Instrument [Line Items]
Debt instrument spread on variable rate					5000.00%
FPSO \| Asset Pledged as Collateral [Member]
Debt Instrument [Line Items]
Number of vessels \| vessel					3