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Lease Obligations Lease Obligations (Tables) | 12 Months Ended
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Dec. 31, 2018
Leases [Abstract] |
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] | As of December 31, 2018, future minimum payments under our current lease agreements are as follows:
Year(s) |  | 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | Thereafter |  | Total
(in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected payments |  | $2,349 |  | $1,998 |  | $1,761 |  | $1,689 |  | $1,642 |  | $5,398 |  | $14,837

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- Definition Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 + Details
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