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Leases | 3 Months Ended
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Mar. 31, 2019
Leases [Abstract] |
Leases | Leases We lease certain pipeline and transportation equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. Our leases do not have any outstanding renewal options. Certain leases also include options to purchase the leased equipment. Certain of our lease agreements include rates based on equipment usage and others include rate inflationary indices based increases. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.
|  | Three months ended
(in thousands) |  | March 31, 2019
Lease Cost |  |
Operating lease cost |  | $ | 1,427 |
Short-term lease cost (1) |  | 477 |
Total lease cost |  | $ | 1,904 |
Other Information |  |
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases |  | $ | (1,427 | )
Weighted-average remaining lease term (years) for operating leases |  | 4.2 |
Weighted-average discount rate (2) operating leases |  | 8.0 | %
(1) Includes an immaterial amount of variable lease cost. (2) Our discount rate is primarily based on our incremental borrowing rate in accordance with ASC 842. The following is an estimate of the maturity of our lease liabilities for operating leases having remaining noncancelable terms in excess of one year as of March 31, 2019 (in thousands) under ASC 842:
April 1 to December 31, 2019 |  | $ | 4,328 |
2020 |  | 5,659 |
2021 |  | 5,337 |
2022 |  | 5,031 |
2023 |  | 2,429 |
Thereafter |  | 8 |
Total lease payment |  | 22,792 |
Less: Interest |  | 3,606 |
Present value of lease liabilities |  | $ | 19,186 |
The following is an estimate of our future minimum lease payments for operating leases having remaining noncancelable terms in excess of one year as of December 31, 2018 (in thousands) under ASC 840:
2019 |  | $ | 5,755 |
2020 |  | 5,659 |
2021 |  | 5,337 |
2022 |  | 5,031 |
2023 |  | 2,429 |
Thereafter |  | 8 |
Total future minimum lease payments |  | $ | 24,219 |

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + 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 + Details
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