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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2016
Supplemental Cash Flow Information [Abstract] |
Supplemental Disclosure of Cash Flow Information and Non-cash Investing and Financing Activities |
| Six Months Ended June 30,
| 2016 |  | 2015
Supplemental disclosure of cash flow information: |  |  |
Interest paid | $ | 217,783 |  |  | $ | 244,977 |
Income taxes paid | 10,186 |  |  | 8,489 |
Supplemental disclosure of non-cash investing and financing activities: |  |  |
Increase (decrease) in accounts payable for purchases of property and equipment | (10,197 | ) |  | (10,102 | )
Purchase of property and equipment under capital leases and installment purchases | 25,444 |  |  | 25,769 |
Installment payment receivable for sale of CCAL (see note 3) | — |  |  | 117,384 |

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