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Leases | 12 Months Ended
--- | ---
Dec. 31, 2018
Leases [Abstract] |
Leases |
(9) | Leases
The Company and its subsidiaries currently lease various facilities and equipment under a number of cancelable and noncancelable operating leases. Lease agreements for barges have terms from one to 12 years expiring at various dates through 2028. Lease agreements for towing vessels chartered by the Company have terms from 30 days to ten years expiring at various dates through 2027; however, approximately 75% of the towing vessel charter agreements are for terms of one year or less. Total rental expense for the years ended December 31, 2018, 2017 and 2016 was as follows (in thousands):
|  | 2018 |  |  | 2017 |  |  | 2016 |
Rental expense: |  |  |  |  |  |  |  |  |
Marine equipment — barges |  | $ | 10,234 |  |  | $ | 11,550 |  |  | $ | 13,791 |
Marine equipment — towing vessels |  |  | 140,389 |  |  |  | 116,690 |  |  |  | 137,609 |
Other buildings and equipment |  |  | 23,365 |  |  |  | 15,915 |  |  |  | 11,182 |
Rental expense |  | $ | 173,988 |  |  | $ | 144,155 |  |  | $ | 162,582 |
Future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess of one year at December 31, 2018 were as follows (in thousands):
|  | Land, Buildings |  |  | Marine Equipment |  |  |  |
|  | And Equipment |  |  | Barges |  |  | Towing Vessels |  |  | Total |
2019 |  | $ | 19,524 |  |  | $ | 6,808 |  |  | $ | 70,759 |  |  | $ | 97,091 |
2020 |  |  | 16,916 |  |  |  | 5,400 |  |  |  | 7,746 |  |  |  | 30,062 |
2021 |  |  | 15,112 |  |  |  | 4,128 |  |  |  | 2,578 |  |  |  | 21,818 |
2022 |  |  | 13,547 |  |  |  | 4,138 |  |  |  | 2,578 |  |  |  | 20,263 |
2023 |  |  | 11,821 |  |  |  | 3,030 |  |  |  | 2,578 |  |  |  | 17,429 |
Thereafter |  |  | 75,818 |  |  |  | 7,098 |  |  |  | 9,023 |  |  |  | 91,939 |
|  | $ | 152,738 |  |  | $ | 30,602 |  |  | $ | 95,262 |  |  | $ | 278,602 |

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- Definition The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -URI http://asc.fasb.org/topic&trid=2208923 + Details
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