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Impairments and Other Charges - Summary of Changes in Goodwill (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Mar. 31, 2020 | Sep. 30, 2021 | Dec. 31, 2020
Goodwill [Roll Forward] |  |  |  |
Balance | $ 1,065,939,000 |  | $ 1,065,939,000 | $ 1,065,939,000
Accumulated impairment and amortization | 627,191,000 |  | 627,191,000 | 408,139,000
Impairment |  | $ 387,970,000 | 219,052,000 |
Balance | 438,748,000 |  | 438,748,000 | 657,800,000
Marine Transportation [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance | 505,784,000 |  | 505,784,000 | 505,784,000
Accumulated impairment and amortization | 237,626,000 |  | 237,626,000 | 18,574,000
Impairment | 219,052,000 |  | 219,052,000 |
Balance | 268,158,000 |  | 268,158,000 | 487,210,000
Distribution And Services [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance | 560,155,000 |  | 560,155,000 | 560,155,000
Accumulated impairment and amortization | 389,565,000 |  | 389,565,000 | 389,565,000
Impairment |  |  |  |
Balance | $ 170,590,000 |  | $ 170,590,000 | $ 170,590,000

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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://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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- Definition Amount before 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 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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