Derivative Instruments - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative assets (note 11)	$ 668	$ 0
Current portion of derivative liabilities	(122)	(289)
Derivative Liability, Noncurrent	0	(597)
Realized and unrealized gain (loss) on derivative instruments (note 11)	564	(2,220)	$ (967)
Realized gain (loss) on Derivative Instruments
Derivative [Line Items]
Realized and unrealized gain (loss) on derivative instruments (note 11)	(868)	(761)	4,280
Unrealized gain (loss) on Derivative Instruments
Derivative [Line Items]
Realized and unrealized gain (loss) on derivative instruments (note 11)	1,432	(1,459)	(5,247)
Interest rate swap agreements \| Realized gain (loss) on Derivative Instruments
Derivative [Line Items]
Realized and unrealized gain (loss) on derivative instruments (note 11)	(296)	481	2,791
Interest rate swap agreements \| Unrealized gain (loss) on Derivative Instruments
Derivative [Line Items]
Realized and unrealized gain (loss) on derivative instruments (note 11)	1,436	(1,545)	(5,218)
Forward freight agreements \| Realized gain (loss) on Derivative Instruments
Derivative [Line Items]
Realized and unrealized gain (loss) on derivative instruments (note 11)	(572)	(1,242)	1,489
Forward freight agreements \| Unrealized gain (loss) on Derivative Instruments
Derivative [Line Items]
Realized and unrealized gain (loss) on derivative instruments (note 11)	(4)	86	$ (29)
Reported Value Measurement
Derivative [Line Items]
Derivative assets (note 11)	668
Current portion of derivative liabilities	(122)	(289)
Derivative Liability, Noncurrent	0	(597)
Reported Value Measurement \| Interest rate swap agreements
Derivative [Line Items]
Derivative assets (note 11)	668
Current portion of derivative liabilities	(118)	(289)
Derivative Liability, Noncurrent	0	$ (597)
Reported Value Measurement \| Forward freight agreements
Derivative [Line Items]
Derivative assets (note 11)	0
Current portion of derivative liabilities	(4)
Derivative Liability, Noncurrent	$ 0

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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