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Leases (Tables) | 6 Months Ended
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Jun. 30, 2019
Leases [Abstract] |
Components of Lease Expense | The components of lease expense were as follows (U.S. dollars in thousands):
|  | Three Months Ended June 30, 2019 |  |  | Six Months Ended June 30, 2019 |
Operating lease cost |  | $ | 12,417 |  |  | $ | 25,278 |
Short-term lease cost |  |  | 52 |  |  |  | 104 |
Variable lease cost |  |  | 1,105 |  |  |  | 2,157 |
|  | $ | 13,574 |  |  | $ | 27,539 |
Supplemental Cash Flow Information Related to Leases | Supplemental cash flow information related to leases was as follows (U.S. dollars in thousands):
|  | Six Months Ended June 30, 2019 |
Operating cash outflow from operating leases |  | $ | 26,570 |
ROU assets obtained in exchange for lease obligations |  |  | 140,585 |
Maturities of Operating Lease Liabilities | Maturities of lease liabilities were as follows (U.S. dollars in thousands):
Year Ending December 31, |  | Operating leases |
2019 |  | $ | 23,632 |
2020 |  |  | 37,424 |
2021 |  |  | 30,478 |
2022 |  |  | 16,439 |
2023 |  |  | 11,574 |
Thereafter |  |  | 15,514 |
Total |  |  | 135,061 |
Less: Finance charges |  |  | 13,794 |
Total principal liability |  | $ | 121,267 |
Minimum Future Operating Leases and Financing Obligations | Under ASC Topic 840, minimum future operating leases and financing obligations at December 31, 2018 are as follows (U.S. dollars in thousands):
Year Ending December 31, |  | Operating leases |  |  | Finance leases |
2019 |  | $ | 39,358 |  |  | $ | 726 |
2020 |  |  | 27,553 |  |  |  | 748 |
2021 |  |  | 20,266 |  |  |  | 757 |
2022 |  |  | 11,723 |  |  |  | 770 |
2023 |  |  | 9,950 |  |  |  | 794 |
Thereafter |  |  | 7,628 |  |  |  | 1,148 |
Total minimum lease payments |  | $ | 116,478 |  |  | $ | 4,943 |

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- Definition Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph (a) -Subparagraph (5) + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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