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Other Assets (Tables) | 6 Months Ended
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Jun. 30, 2018
Other Assets [Abstract] |
Schedule of Other Assets [Table Text Block] | Other assets consist of the following (in thousands):
| June 30, 2018 |  | December 31, 2017
Accounts receivable and other assets | $ | 9,709 |  |  | $ | 5,187 |
Regulatory escrows | 8,208 |  |  | 8,208 |
Reserves for replacement, insurance and tax escrows | 5,209 |  |  | 4,817 |
| $ | 23,126 |  |  | $ | 18,212 |

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- Definition Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
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