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Acquisitions, 2018 (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) Vessel | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) Tankbarge
Acquisitions [Abstract] |  |  |
Purchase price | $ 98,015,000 | $ 148,185,000 | $ 248,164,000
Cash paid for acquisition |  | 81,635,000 |
Fair values of assets acquired and liabilities assumed, net [Abstract] |  |  |
Goodwill | 438,748,000 | $ 657,800,000 | 953,826,000
Inland Tank Barges [Member] |  |  |
Acquisitions [Abstract] |  |  |
Purchase price |  |  | $ 17,991,000
Cash paid for acquisition | $ 7,470,000 |  |
Number of maritime vessels acquired | 4 |  | 9
Average age of property |  | 5 years |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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