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Financial Information by Business Segment - Schedule of Depreciation, Amortization, and Expenditures (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Depreciation and depletion: |  |  |  |
Depreciation and depletion | $ 435,311 | $ 246,560 | $ 1,290,876 | $ 719,295
Expenditures for segment assets: |  |  |  |
Expenditures for segment assets | 1,105,862 | 522,299 | 2,809,518 | 2,081,986
Payments to acquire businesses, gross |  |  | 0 | 818,957
Operating Segments | EQT Production |  |  |  |
Depreciation and depletion: |  |  |  |
Depreciation and depletion | 391,083 | 224,103 | 1,161,718 | 654,411
Expenditures for segment assets: |  |  |  |
Expenditures for segment assets | 855,494 | 449,303 | 2,225,435 | 1,850,482
Accrual (reversal) of capital expenditures | (51,800) | 44,300 | (45,200) | 102,700
Payments to acquire businesses, gross |  | 7,800 |  | 819,000
Capital expenditures incurred but not yet paid |  |  |  | 7,500
Operating Segments | EQM Gathering |  |  |  |
Depreciation and depletion: |  |  |  |
Depreciation and depletion | 25,359 | 9,983 | 72,309 | 28,398
Expenditures for segment assets: |  |  |  |
Expenditures for segment assets | 194,477 | 48,182 | 515,072 | 150,728
Operating Segments | EQM Transmission |  |  |  |
Depreciation and depletion: |  |  |  |
Depreciation and depletion | 12,357 | 12,261 | 37,228 | 35,793
Expenditures for segment assets: |  |  |  |
Expenditures for segment assets | 37,626 | 22,312 | 84,517 | 73,679
Operating Segments | EQM Water |  |  |  |
Depreciation and depletion: |  |  |  |
Depreciation and depletion | 5,851 | 0 | 17,420 | 0
Expenditures for segment assets: |  |  |  |
Expenditures for segment assets | 7,981 | 0 | 17,358 | 0
Other |  |  |  |
Depreciation and depletion: |  |  |  |
Depreciation and depletion | 661 | 213 | 2,201 | 693
Expenditures for segment assets: |  |  |  |
Expenditures for segment assets | $ 10,284 | $ 2,502 | $ (32,864) | $ 7,097

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