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SEGMENT INFORMATION (Tables) | 6 Months Ended
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Jun. 30, 2019
SEGMENT INFORMATION |
Summary of financial information by segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended June 30, 2019
​ |  | ​ | ​ |  | Income (loss) |  | Depreciation and |  | Capital
​ | ​ | Revenue | ​ | before taxes | ​ | Amortization | ​ | Expenditures
​ | ​ | (in thousands)
Water services | ​ | $ | 202,997 | ​ | $ | 16,234 | ​ | $ | 21,024 | ​ | $ | 9,489
Water infrastructure | ​ | ​ | 51,719 | ​ | ​ | 3,202 | ​ | ​ | 6,072 | ​ | ​ | 11,542
Oilfield chemicals | ​ | ​ | 62,997 | ​ | ​ | 4,424 | ​ | ​ | 1,747 | ​ | ​ | 2,132
Other | ​ | ​ | 9,403 | ​ | ​ | 673 | ​ | ​ | — | ​ | ​ | 3
Eliminations | ​ |  | (3,229) | ​ |  | — | ​ |  | — | ​ |  | —
Income from operations | ​ |  | ​ | ​ |  | 24,533 | ​ |  | ​ | ​ |  | ​
Corporate | ​ |  | — | ​ |  | (13,354) | ​ |  | 906 | ​ |  | —
Interest expense, net | ​ |  | — | ​ |  | (839) | ​ |  | — | ​ |  | —
Other income, net | ​ |  | — | ​ |  | (1,701) | ​ |  | — | ​ |  | —
​ | ​ | $ | 323,887 | ​ | $ | 8,639 | ​ | $ | 29,749 | ​ | $ | 23,166
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended June 30, 2018
​ |  | ​ | ​ |  | Income (loss) |  | Depreciation and |  | Capital
​ | ​ | Revenue | ​ | before taxes | ​ | Amortization | ​ | Expenditures
​ | ​ | (in thousands)
Water services | ​ | $ | 234,040 | ​ | $ | 27,039 | ​ | $ | 18,947 | ​ | $ | 33,321
Water infrastructure | ​ | ​ | 55,733 | ​ | ​ | 7,030 | ​ | ​ | 5,219 | ​ | ​ | 7,214
Oilfield chemicals | ​ | ​ | 64,842 | ​ | ​ | 1,031 | ​ | ​ | 2,823 | ​ | ​ | 3,424
Other | ​ | ​ | 39,343 | ​ | ​ | 911 | ​ | ​ | 3,456 | ​ | ​ | 1,860
Eliminations | ​ |  | (711) | ​ |  | — | ​ |  | — | ​ |  | —
Income from operations | ​ |  | ​ | ​ |  | 36,011 | ​ |  | ​ | ​ |  | ​
Corporate | ​ |  | — | ​ |  | (11,216) | ​ |  | 807 | ​ |  | —
Interest expense, net | ​ |  | — | ​ |  | (1,342) | ​ |  | — | ​ |  | —
Other income, net | ​ |  | — | ​ |  | 1,720 | ​ |  | — | ​ |  | —
​ | ​ | $ | 393,247 | ​ | $ | 25,173 | ​ | $ | 31,252 | ​ | $ | 45,819
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the six months ended June 30, 2019
​ |  | ​ | ​ |  | Income (loss) |  | Depreciation and |  | Capital
​ | ​ | Revenue | ​ | before taxes | ​ | Amortization | ​ | Expenditures
​ | ​ | (in thousands)
Water services | ​ | $ | 423,877 | ​ | $ | 39,894 | ​ | $ | 42,286 | ​ | $ | 22,615
Water infrastructure | ​ | ​ | 105,335 | ​ | ​ | 7,003 | ​ | ​ | 12,161 | ​ | ​ | 28,780
Oilfield chemicals | ​ | ​ | 130,116 | ​ | ​ | 6,437 | ​ | ​ | 4,200 | ​ | ​ | 3,352
Other | ​ | ​ | 33,073 | ​ | ​ | (5,850) | ​ | ​ | 1,714 | ​ | ​ | 64
Eliminations | ​ |  | (5,868) | ​ |  | — | ​ |  | — | ​ |  | —
Income from operations | ​ |  | ​ | ​ |  | 47,484 | ​ |  | ​ | ​ |  | ​
Corporate | ​ |  | — | ​ |  | (29,672) | ​ |  | 1,906 | ​ |  | —
Interest expense, net | ​ |  | — | ​ |  | (1,932) | ​ |  | — | ​ |  | —
Other income, net | ​ |  | — | ​ |  | (5,663) | ​ |  | — | ​ |  | —
​ | ​ | $ | 686,533 | ​ | $ | 10,217 | ​ | $ | 62,267 | ​ | $ | 54,811
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the six months ended June 30, 2018
​ |  | ​ | ​ |  | Income (loss) |  | Depreciation and |  | Capital
​ | ​ | Revenue | ​ | before taxes | ​ | Amortization | ​ | Expenditures
​ | ​ | (in thousands)
Water services | ​ | $ | 452,395 | ​ | $ | 49,757 | ​ | $ | 37,839 | ​ | $ | 51,218
Water infrastructure | ​ | ​ | 109,790 | ​ | ​ | 12,779 | ​ | ​ | 10,256 | ​ | ​ | 14,650
Oilfield chemicals | ​ | ​ | 128,472 | ​ | ​ | 1,962 | ​ | ​ | 5,738 | ​ | ​ | 5,679
Other | ​ | ​ | 80,167 | ​ | ​ | (58) | ​ | ​ | 7,494 | ​ | ​ | 5,378
Eliminations | ​ |  | (1,182) | ​ |  | — | ​ |  | — | ​ |  | —
Income from operations | ​ |  | ​ | ​ |  | 64,440 | ​ |  | ​ | ​ |  | ​
Corporate | ​ |  | — | ​ |  | (21,042) | ​ |  | 1,348 | ​ |  | —
Interest expense, net | ​ |  | — | ​ |  | (2,493) | ​ |  | — | ​ |  | —
Other income, net | ​ |  | — | ​ |  | 862 | ​ |  | — | ​ |  | —
​ | ​ | $ | 769,642 | ​ | $ | 41,767 | ​ | $ | 62,675 | ​ | $ | 76,925
​ Total assets by segment as of June 30, 2019 and December 31, 2018 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | As of | ​ | As of
​ | ​ | June 30, 2019 | ​ | December 31, 2018
​ | ​ | (in thousands)
Water services | ​ | $ | 873,107 | ​ | $ | 865,992
Water infrastructure |  | ​ | 312,638 |  | ​ | 250,207
Oilfield chemicals |  | ​ | 171,457 |  | ​ | 173,762
Other | ​ | ​ | 19,975 | ​ | ​ | 70,644
​ | ​ | $ | 1,377,177 | ​ | $ | 1,360,605
​

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599 + Details
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