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Segment Information - Schedule of Information by Business Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Revenues: |  |  |  |  |  |  |  |  |  |  |
Total revenues | $ 4,850 | $ 46,853 | $ 71,889 | $ 20,604 | $ 2,374 | $ 71,670 | $ 60,012 | $ 19,070 | $ 144,196 | $ 153,126 | $ 104,003
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Total operating expenses | 4,355 | 33,170 | 52,374 | 19,238 | 2,350 | 50,643 | 48,336 | 15,798 | 109,137 | 117,127 | 82,809
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Total gross profit | 495 | $ 13,683 | $ 19,515 | $ 1,366 | 24 | $ 21,027 | $ 11,676 | $ 3,272 | 35,059 | 35,999 | 21,194
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 14,305 | 11,523 | 13,280
Depreciation, depletion and amortization: |  |  |  |  |  |  |  |  |  |  |
Total depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 15,382 | 14,732 | 9,638
Assets: |  |  |  |  |  |  |  |  |  |  |
Total Assets | 458,662 |  |  |  | 460,088 |  |  |  | 458,662 | 460,088 |
Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 144,196 | 153,126 | 104,003
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Total operating expenses |  |  |  |  |  |  |  |  | 109,137 | 117,127 | 82,809
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Total gross profit |  |  |  |  |  |  |  |  | 35,059 | 35,999 | 21,194
Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 1,619 | 497 | 285
Depreciation, depletion and amortization: |  |  |  |  |  |  |  |  |  |  |
Total depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 468 | 689 | 180
Corporate, Non-Segment |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |
Total Assets | 9,659 |  |  |  | 12,052 |  |  |  | 9,659 | 12,052 |
Orange Co. |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 137,282 | 146,147 | 74,768
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Total operating expenses |  |  |  |  |  |  |  |  | 102,347 | 110,236 | 54,956
Orange Co. | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Total gross profit |  |  |  |  |  |  |  |  | 34,935 | 35,911 | 19,812
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 10,393 | 9,403 | 7,849
Depreciation, depletion and amortization: |  |  |  |  |  |  |  |  |  |  |
Total depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 13,982 | 12,297 | 4,201
Assets: |  |  |  |  |  |  |  |  |  |  |
Total Assets | 412,643 |  |  |  | 412,700 |  |  |  | 412,643 | 412,700 |
Conservation and Environmental Resources |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 5,669 | 5,394 | 8,172
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Total operating expenses |  |  |  |  |  |  |  |  | 6,393 | 4,808 | 6,123
Conservation and Environmental Resources | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Total gross profit |  |  |  |  |  |  |  |  | (724) | 586 | 2,049
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 1,664 | 1,461 | 5,109
Depreciation, depletion and amortization: |  |  |  |  |  |  |  |  |  |  |
Total depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 456 | 1,275 | 1,604
Assets: |  |  |  |  |  |  |  |  |  |  |
Total Assets | 13,073 |  |  |  | 12,648 |  |  |  | 13,073 | 12,648 |
Other Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 1,245 | 1,585 | 21,063
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Total operating expenses |  |  |  |  |  |  |  |  | 397 | 2,083 | 21,730
Other Operations | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Total gross profit |  |  |  |  |  |  |  |  | 848 | (498) | (667)
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 629 | 162 | 37
Depreciation, depletion and amortization: |  |  |  |  |  |  |  |  |  |  |
Total depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 476 | 471 | $ 3,653
Assets: |  |  |  |  |  |  |  |  |  |  |
Total Assets | $ 23,287 |  |  |  | $ 22,688 |  |  |  | $ 23,287 | $ 22,688 |

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