XML 71 R52.htm IDEA: XBRL DOCUMENT v3.7.0.1
Information By Business Segments (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
Reportable_Segments
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Segment Reporting Information [Line Items]      
Number of Reportable Segments | Reportable_Segments 2    
Operating revenues $ 436,470 $ 418,173  
Resource costs 165,586 161,719  
Other operating expenses 80,663 81,604  
Depreciation and amortization 42,173 39,380  
Income from operations 115,386 106,085  
Interest expense 23,730 21,411  
Income taxes 33,344 30,345  
Net income from continuing operations attributable to Avista Corp. shareholders 62,116 57,649  
Payments to Acquire Other Property, Plant, and Equipment 86,798 88,997  
Total assets 5,340,359   $ 5,309,755
Intersegment Eliminations [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 0 0  
Resource costs 0 0  
Other operating expenses 0 0  
Depreciation and amortization 0 0  
Income from operations 0 0  
Interest expense (14) (63)  
Income taxes 0 0  
Net income from continuing operations attributable to Avista Corp. shareholders 0 0  
Payments to Acquire Other Property, Plant, and Equipment 0 0  
Total assets 0   0
Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 430,537 412,793  
Resource costs 165,586 161,719  
Other operating expenses 74,484 75,779  
Depreciation and amortization 41,985 39,192  
Income from operations 115,820 106,718  
Interest expense 23,577 21,313  
Income taxes 33,480 30,567  
Net income from continuing operations attributable to Avista Corp. shareholders 62,292 57,948  
Payments to Acquire Other Property, Plant, and Equipment 86,763 88,878  
Total assets 5,279,509   5,249,325
Operating Segments [Member] | Avista Utilities [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 415,381 400,147  
Resource costs 162,613 159,078  
Other operating expenses 71,712 73,256  
Depreciation and amortization 40,538 37,866  
Income from operations 108,635 101,245  
Interest expense 22,683 20,418  
Income taxes 31,017 28,672  
Net income from continuing operations attributable to Avista Corp. shareholders 58,439 54,987  
Payments to Acquire Other Property, Plant, and Equipment 85,403 84,435  
Total assets 5,003,014   4,975,555
Operating Segments [Member] | Alaska Electric Light & Power [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 15,156 12,646  
Resource costs 2,973 2,641  
Other operating expenses 2,772 2,523  
Depreciation and amortization 1,447 1,326  
Income from operations 7,185 5,473  
Interest expense 894 895  
Income taxes 2,463 1,895  
Net income from continuing operations attributable to Avista Corp. shareholders 3,853 2,961  
Payments to Acquire Other Property, Plant, and Equipment 1,360 4,443  
Total assets 276,495   273,770
Operating Segments [Member] | Corporate and Other [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 5,933 5,380  
Resource costs 0 0  
Other operating expenses 6,179 5,825  
Depreciation and amortization 188 188  
Income from operations (434) (633)  
Interest expense 167 161  
Income taxes (136) (222)  
Net income from continuing operations attributable to Avista Corp. shareholders (176) (299)  
Payments to Acquire Other Property, Plant, and Equipment 35 $ 119  
Total assets $ 60,850   $ 60,430