XML 154 R130.htm IDEA: XBRL DOCUMENT v3.10.0.1
Quarterly information (unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items]                      
Revenues $ 761,650 $ 768,048 $ 685,277 $ 645,874 $ 658,597 $ 673,185 $ 632,281 $ 591,562 $ 2,860,849 $ 2,555,625 $ 2,380,654
Operating income 84,604 98,064 78,799 71,889 87,220 111,473 77,802 69,738 333,356 346,233 355,838
Net income 50,046 66,371 46,527 40,720 32,843 60,544 39,134 34,666 203,664 167,187 250,146
Net income for common stock $ 49,573 $ 65,900 $ 46,054 $ 40,247 $ 32,370 $ 60,073 $ 38,661 $ 34,193 $ 201,774 $ 165,297 $ 248,256
Basic earnings per common share (in dollars per share) $ 0.46 $ 0.61 $ 0.42 $ 0.37 $ 0.30 $ 0.55 $ 0.36 $ 0.31 $ 1.85 $ 1.52 $ 2.30
Diluted earnings per common share (in dollars per share) 0.45 0.60 0.42 0.37 0.30 0.55 0.36 0.31 1.85 1.52 2.29
Dividends declared per common share (in dollars per share) $ 0.31 $ 0.31 $ 0.31 $ 0.31 $ 0.31 $ 0.31 $ 0.31 $ 0.31 $ 1.24 $ 1.24 $ 1.24
Net tax expense due to impact of the Tax Act         $ 14,200         $ 13,400  
Deferred tax expense (benefit) tax cuts and job act of 2017, adjustment for bonuses paid         700            
Hawaiian Electric Company, Inc. and Subsidiaries                      
Condensed Financial Statements, Captions [Line Items]                      
Revenues $ 680,563 $ 687,409 $ 608,126 $ 570,427 583,311 $ 598,769 $ 556,875 $ 518,611 $ 2,546,525 2,257,566  
Operating income 61,112 74,036 55,144 51,369 68,184 88,497 56,482 50,361 241,661 263,524 $ 290,070
Net income 35,796 50,210 31,668 27,974 25,854 47,985 26,143 21,964 145,648 121,946 144,312
Net income for common stock $ 35,297 $ 49,712 $ 31,169 $ 27,475 25,355 $ 47,487 25,644 21,465 $ 143,653 119,951 $ 142,317
Net tax expense due to impact of the Tax Act         $ 9,200         $ 9,200  
Settlement agreement expiration, tax expense (benefit)             8,000 12,000      
Settlement agreement expiration, revenue adjustment, net of taxes             $ 4,000 $ 7,000