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Segment financial information | 6 Months Ended
--- | ---
Jun. 30, 2018
Segment Reporting [Abstract] |
Segment financial information | Segment financial information
(in thousands) |  | Electric utility |  | Bank |  | Other |  | Total
Three months ended June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 608,112 |  |  | $ | 77,104 |  |  | $ | 61 |  |  | $ | 685,277 |
Intersegment revenues (eliminations) |  | 14 |  |  | — |  |  | (14 | ) |  | — |
Revenues |  | $ | 608,126 |  |  | $ | 77,104 |  |  | $ | 47 |  |  | $ | 685,277 |
Income (loss) before income taxes |  | $ | 40,344 |  |  | $ | 26,514 |  |  | $ | (7,276 | ) |  | $ | 59,582 |
Income taxes (benefit) |  | 8,676 |  |  | 5,953 |  |  | (1,574 | ) |  | 13,055 |
Net income (loss) |  | 31,668 |  |  | 20,561 |  |  | (5,702 | ) |  | 46,527 |
Preferred stock dividends of subsidiaries |  | 499 |  |  | — |  |  | (26 | ) |  | 473 |
Net income (loss) for common stock |  | $ | 31,169 |  |  | $ | 20,561 |  |  | $ | (5,676 | ) |  | $ | 46,054 |
Six months ended June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 1,178,526 |  |  | $ | 152,523 |  |  | $ | 102 |  |  | $ | 1,331,151 |
Intersegment revenues (eliminations) |  | 27 |  |  | — |  |  | (27 | ) |  | — |
Revenues |  | $ | 1,178,553 |  |  | $ | 152,523 |  |  | $ | 75 |  |  | $ | 1,331,151 |
Income (loss) before income taxes |  | $ | 77,493 |  |  | $ | 51,014 |  |  | $ | (15,649 | ) |  | $ | 112,858 |
Income taxes (benefit) |  | 17,851 |  |  | 11,493 |  |  | (3,733 | ) |  | 25,611 |
Net income (loss) |  | 59,642 |  |  | 39,521 |  |  | (11,916 | ) |  | 87,247 |
Preferred stock dividends of subsidiaries |  | 998 |  |  | — |  |  | (52 | ) |  | 946 |
Net income (loss) for common stock |  | $ | 58,644 |  |  | $ | 39,521 |  |  | $ | (11,864 | ) |  | $ | 86,301 |
Total assets (at June 30, 2018) |  | $ | 5,803,714 |  |  | $ | 6,983,583 |  |  | $ | 96,807 |  |  | $ | 12,884,104 |
Three months ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 556,836 |  |  | $ | 75,329 |  |  | $ | 116 |  |  | $ | 632,281 |
Intersegment revenues (eliminations) |  | 39 |  |  | — |  |  | (39 | ) |  | — |
Revenues |  | $ | 556,875 |  |  | $ | 75,329 |  |  | $ | 77 |  |  | $ | 632,281 |
Income (loss) before income taxes |  | $ | 41,003 |  |  | $ | 24,796 |  |  | $ | (6,173 | ) |  | $ | 59,626 |
Income taxes (benefit) |  | 14,860 |  |  | 8,063 |  |  | (2,431 | ) |  | 20,492 |
Net income (loss) |  | 26,143 |  |  | 16,733 |  |  | (3,742 | ) |  | 39,134 |
Preferred stock dividends of subsidiaries |  | 499 |  |  | — |  |  | (26 | ) |  | 473 |
Net income (loss) for common stock |  | $ | 25,644 |  |  | $ | 16,733 |  |  | $ | (3,716 | ) |  | $ | 38,661 |
Six months ended June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 1,075,402 |  |  | $ | 148,185 |  |  | $ | 256 |  |  | $ | 1,223,843 |
Intersegment revenues (eliminations) |  | 84 |  |  | — |  |  | (84 | ) |  | — |
Revenues |  | $ | 1,075,486 |  |  | $ | 148,185 |  |  | $ | 172 |  |  | $ | 1,223,843 |
Income (loss) before income taxes |  | $ | 75,725 |  |  | $ | 48,956 |  |  | $ | (13,473 | ) |  | $ | 111,208 |
Income taxes (benefit) |  | 27,618 |  |  | 16,410 |  |  | (6,620 | ) |  | 37,408 |
Net income (loss) |  | 48,107 |  |  | 32,546 |  |  | (6,853 | ) |  | 73,800 |
Preferred stock dividends of subsidiaries |  | 998 |  |  | — |  |  | (52 | ) |  | 946 |
Net income (loss) for common stock |  | $ | 47,109 |  |  | $ | 32,546 |  |  | $ | (6,801 | ) |  | $ | 72,854 |
Total assets (at December 31, 2017) |  | $ | 5,630,613 |  |  | $ | 6,798,659 |  |  | $ | 104,888 |  |  | $ | 12,534,160 |
Intercompany electricity sales of the Utilities to the bank and “other” segments are not eliminated because those segments would need to purchase electricity from another source if it were not provided by the Utilities and the profit on such sales is nominal. Bank fees that ASB charges the Utilities and “other” segments are not eliminated because those segments would pay fees to another financial institution if they were to bank with another institution and the profit on such fees is nominal. Hamakua Energy’s sales to Hawaii Electric Light (a regulated affiliate) are eliminated in consolidation. Hamakua Energy's profit on electricity sales to Hawaii Electric Light is not required to be eliminated because the PPA was approved by the PUC and it is probable that, through the ratemaking process, future revenue from Hawaii Electric Light’s sale of the electricity will approximate its purchase price from Hamakua Energy under the PPA.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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