XML 71 R2.htm IDEA: XBRL DOCUMENT
v3.25.1

Pay vs Performance Disclosure - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table | Pay vs. Performance (“PvP”) Tabular Disclosure — 2024 As required by Section 953(a) of the Dodd-Frank Act, and Item 402(v) of Regulation S-K, we are providing the following information about the relationship between “compensation actually paid” (“CAP”) to our CEO and to our other NEOs and certain financial performance metrics of the Company. CAP, as determined under SEC requirements, does not reflect the actual amount of compensation earned by or paid to our executive officers during a covered year. For further information concerning the Company’s pay-for-performance philosophy and how the Company aligns executive compensation with the Company’s performance, refer to the Compensation Discussion and Analysis.
|  | Pay |  | Performance |
|  | CEO |  |  |  |  | Average of Other NEOs |  |  |  |  | Value of $100 Initial Investment Based On: |  |  |  |  |  |  |
Year (1) |  | SCT Total Compensation |  |  | Compensation Actually Paid (2) |  |  |  |  | SCT Total Compensation |  |  | Compensation Actually Paid (2) |  |  |  |  | Cumulative TSR |  |  | Peer Group Cumulative TSR (3) |  |  | Net Income ($M) |  |  | EPS |
2024 |  | $ | 4,977,194 |  |  | $ | 5,047,454 |  |  |  |  | $ | 1,340,034 |  |  | $ | 1,363,893 |  |  |  |  | $ | 95 |  |  | $ | 118 |  |  | $ | 180.1 |  |  | $ | 2.39 |
2023 |  | $ | 5,229,962 |  |  | $ | 1,552,612 |  |  |  |  | $ | 1,137,887 |  |  | $ | 454,110 |  |  |  |  | $ | 86 |  |  | $ | 88 |  |  | $ | 171.2 |  |  | $ | 2.24 |
2022 |  | $ | 4,745,379 |  |  | $ | 5,290,632 |  |  |  |  | $ | 1,318,402 |  |  | $ | 1,605,440 |  |  |  |  | $ | 104 |  |  | $ | 103 |  |  | $ | 155.2 |  |  | $ | 2.12 |
2021 |  | $ | 4,577,539 |  |  | $ | 3,485,983 |  |  |  |  | $ | 1,257,052 |  |  | $ | 1,082,031 |  |  |  |  | $ | 96 |  |  | $ | 103 |  |  | $ | 147.3 |  |  | $ | 2.10 |
2020 |  | $ | 5,004,033 |  |  | $ | 2,234,759 |  |  |  |  | $ | 1,173,361 |  |  | $ | 241,559 |  |  |  |  | $ | 87 |  |  | $ | 86 |  |  | $ | 129.5 |  |  | $ | 1.90 |
1. | The CEO in all four reporting years was Dennis Vermillion. The other NEOs in the 2024 reporting year were Kevin Christie, Heather Rosentrater, Greg Hesler, and Jason Thackston. The other NEOs in the 2023 reporting years are Mark Thies (ret.), Kevin Christie, Heather Rosentrater, Jason Thackston, and Wayne Manuel. The other NEOs in 2022 and 2021 reporting years were: Mark Thies (ret.), Jason Thackston, Heather Rosentrater, and Kevin Christie. The other NEOs in the 2020 reporting year are Mark Thies (ret.), Jason Thackston, Marian Durkin (ret.), Kevin Christie, and Heather Rosentrater.
2. | Amounts reported in this column are based upon total compensation reported for our CEO and our other NEOs in the SCT for the indicated reporting years and adjusted as shown in the table below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
|  | 2020 |  |  |  |  | 2021 |  |  |  |  | 2022 |  |  |  |  | 2023 |  |  |  |  | 2024 |
|  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |
SCT Reported Compensation |  | $ | 5,004,033 |  |  | $ | 1,173,361 |  |  |  |  | $ | 4,577,539 |  |  | $ | 1,257,052 |  |  |  |  | $ | 4,745,379 |  |  | $ | 1,318,402 |  |  |  |  | $ | 5,229,962 |  |  | $ | 1,137,887 |  |  |  |  | $ | 4,977,194 |  |  | $ | 1,340,034 |
Deduct: SCT reported change in pension value |  | $ | (2,290,317 | ) |  | $ | (335,308 | ) |  |  |  | $ | (905,751 | ) |  | $ | (170,893 | ) |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | (1,384,964 | ) |  | $ | (155,884 | ) |  |  |  | $ | (528,636 | ) |  | $ | (142,187 | )
Add: “CAP” pension value |  | $ | 985,475 |  |  | $ | 73,716 |  |  |  |  | $ | 6,658 |  |  | $ | 118,549 |  |  |  |  | $ | 3,813 |  |  | $ | 115,378 |  |  |  |  | $ | 804 |  |  | $ | 35,117 |  |  |  |  | $ | 422 |  |  | $ | 51,637 |
Deduct: Grant date fair values of equity awards reported in “Stock Awards” column of the SCT for the covered FY |  | $ | (1,778,775 | ) |  | $ | (432,640 | ) |  |  |  | $ | (1,986,445 | ) |  | $ | (443,078 | ) |  |  |  | $ | (2,923,157 | ) |  | $ | (642,502 | ) |  |  |  | $ | (2,728,537 | ) |  | $ | (505,521 | ) |  |  |  | $ | (2,854,069 | ) |  | $ | (530,051 | )
Deduct: For any awards granted in any prior FY forfeited during the covered FY, the fair value at the end of the prior FY |  | $ | — |  |  | $ | (10,089 | ) |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | (104,376 | ) |  |  |  | $ | — |  |  | $ | — |
Add: Fair values as of the end of the covered FY of all equity awards granted during the covered FY outstanding and unvested as of the end of such covered FY |  | $ | 798,823 |  |  | $ | 154,306 |  |  |  |  | $ | 1,865,542 |  |  | $ | 416,058 |  |  |  |  | $ | 2,626,495 |  |  | $ | 577,278 |  |  |  |  | $ | 1,767,071 |  |  | $ | 242,652 |  |  |  |  | $ | 3,213,321 |  |  | $ | 596,766 |
Add: The change in fair value (whether positive or negative) as of the end of the covered FY of any equity awards granted in any prior FY outstanding and unvested as of the end of such covered FY |  | $ | (249,034 | ) |  | $ | (176,959 | ) |  |  |  | $ | (192,645 | ) |  | $ | (63,103 | ) |  |  |  | $ | 268,274 |  |  | $ | 61,234 |  |  |  |  | $ | (1,518,971 | ) |  | $ | (240,617 | ) |  |  |  | $ | (454,563 | ) |  | $ | (77,953 | )
Add: For awards granted and vested in the same FY, the fair value as of the vesting date |  | $ | 109,542 |  |  | $ | 23,708 |  |  |  |  | $ | 179,733 |  |  | $ | 40,100 |  |  |  |  | $ | 217,488 |  |  | $ | 63,451 |  |  |  |  | $ | 227,735 |  |  | $ | 58,177 |  |  |  |  | $ | 314,212 |  |  | $ | 58,361 |
Add: The change in fair value (whether positive or negative) as of the vesting date of any awards granted in any prior FY for which all applicable vesting conditions were satisfied at the end of or during the covered FY |  | $ | (410,431 | ) |  | $ | (250,148 | ) |  |  |  | $ | (197,784 | ) |  | $ | (108,165 | ) |  |  |  | $ | 119,893 |  |  | $ | 60,392 |  |  |  |  | $ | (183,866 | ) |  | $ | (36,344 | ) |  |  |  | $ | 164,104 |  |  | $ | 27,739 |
Add: The dollar value of any dividend equivalents or other earnings paid on stock or option awards in the covered FY prior to the vesting date not otherwise reflected in the fair value of such award |  | $ | 65,443 |  |  | $ | 21,612 |  |  |  |  | $ | 139,135 |  |  | $ | 35,511 |  |  |  |  | $ | 232,446 |  |  | $ | 51,807 |  |  |  |  | $ | 143,377 |  |  | $ | 23,019 |  |  |  |  | $ | 215,470 |  |  | $ | 39,548 |
Total Compensation Actually Paid |  | $ | 2,234,759 |  |  | $ | 241,559 |  |  |  |  | $ | 3,485,983 |  |  | $ | 1,082,031 |  |  |  |  | $ | 5,290,632 |  |  | $ | 1,605,440 |  |  |  |  | $ | 1,552,612 |  |  | $ | 454,110 |  |  |  |  | $ | 5,047,454 |  |  | $ | 1,363,893 |
3. | Amounts reported in this column represent returns on an initial $100 investment in the S&P 400 Utilities Index, which we chose as peer group for purposes of the PvP table.
Company Selected Measure Name | EPS |  |  |  |
Named Executive Officers, Footnote |
1. | The CEO in all four reporting years was Dennis Vermillion. The other NEOs in the 2024 reporting year were Kevin Christie, Heather Rosentrater, Greg Hesler, and Jason Thackston. The other NEOs in the 2023 reporting years are Mark Thies (ret.), Kevin Christie, Heather Rosentrater, Jason Thackston, and Wayne Manuel. The other NEOs in 2022 and 2021 reporting years were: Mark Thies (ret.), Jason Thackston, Heather Rosentrater, and Kevin Christie. The other NEOs in the 2020 reporting year are Mark Thies (ret.), Jason Thackston, Marian Durkin (ret.), Kevin Christie, and Heather Rosentrater.
Peer Group Issuers, Footnote |
3. | Amounts reported in this column represent returns on an initial $100 investment in the S&P 400 Utilities Index, which we chose as peer group for purposes of the PvP table.
PEO Total Compensation Amount | $ 4,977,194 | $ 5,229,962 | $ 4,745,379 | $ 4,577,539 | $ 5,004,033
PEO Actually Paid Compensation Amount | $ 5,047,454 | 1,552,612 | 5,290,632 | 3,485,983 | 2,234,759
Adjustment To PEO Compensation, Footnote |
2. | Amounts reported in this column are based upon total compensation reported for our CEO and our other NEOs in the SCT for the indicated reporting years and adjusted as shown in the table below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
|  | 2020 |  |  |  |  | 2021 |  |  |  |  | 2022 |  |  |  |  | 2023 |  |  |  |  | 2024 |
|  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |
SCT Reported Compensation |  | $ | 5,004,033 |  |  | $ | 1,173,361 |  |  |  |  | $ | 4,577,539 |  |  | $ | 1,257,052 |  |  |  |  | $ | 4,745,379 |  |  | $ | 1,318,402 |  |  |  |  | $ | 5,229,962 |  |  | $ | 1,137,887 |  |  |  |  | $ | 4,977,194 |  |  | $ | 1,340,034 |
Deduct: SCT reported change in pension value |  | $ | (2,290,317 | ) |  | $ | (335,308 | ) |  |  |  | $ | (905,751 | ) |  | $ | (170,893 | ) |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | (1,384,964 | ) |  | $ | (155,884 | ) |  |  |  | $ | (528,636 | ) |  | $ | (142,187 | )
Add: “CAP” pension value |  | $ | 985,475 |  |  | $ | 73,716 |  |  |  |  | $ | 6,658 |  |  | $ | 118,549 |  |  |  |  | $ | 3,813 |  |  | $ | 115,378 |  |  |  |  | $ | 804 |  |  | $ | 35,117 |  |  |  |  | $ | 422 |  |  | $ | 51,637 |
Deduct: Grant date fair values of equity awards reported in “Stock Awards” column of the SCT for the covered FY |  | $ | (1,778,775 | ) |  | $ | (432,640 | ) |  |  |  | $ | (1,986,445 | ) |  | $ | (443,078 | ) |  |  |  | $ | (2,923,157 | ) |  | $ | (642,502 | ) |  |  |  | $ | (2,728,537 | ) |  | $ | (505,521 | ) |  |  |  | $ | (2,854,069 | ) |  | $ | (530,051 | )
Deduct: For any awards granted in any prior FY forfeited during the covered FY, the fair value at the end of the prior FY |  | $ | — |  |  | $ | (10,089 | ) |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | (104,376 | ) |  |  |  | $ | — |  |  | $ | — |
Add: Fair values as of the end of the covered FY of all equity awards granted during the covered FY outstanding and unvested as of the end of such covered FY |  | $ | 798,823 |  |  | $ | 154,306 |  |  |  |  | $ | 1,865,542 |  |  | $ | 416,058 |  |  |  |  | $ | 2,626,495 |  |  | $ | 577,278 |  |  |  |  | $ | 1,767,071 |  |  | $ | 242,652 |  |  |  |  | $ | 3,213,321 |  |  | $ | 596,766 |
Add: The change in fair value (whether positive or negative) as of the end of the covered FY of any equity awards granted in any prior FY outstanding and unvested as of the end of such covered FY |  | $ | (249,034 | ) |  | $ | (176,959 | ) |  |  |  | $ | (192,645 | ) |  | $ | (63,103 | ) |  |  |  | $ | 268,274 |  |  | $ | 61,234 |  |  |  |  | $ | (1,518,971 | ) |  | $ | (240,617 | ) |  |  |  | $ | (454,563 | ) |  | $ | (77,953 | )
Add: For awards granted and vested in the same FY, the fair value as of the vesting date |  | $ | 109,542 |  |  | $ | 23,708 |  |  |  |  | $ | 179,733 |  |  | $ | 40,100 |  |  |  |  | $ | 217,488 |  |  | $ | 63,451 |  |  |  |  | $ | 227,735 |  |  | $ | 58,177 |  |  |  |  | $ | 314,212 |  |  | $ | 58,361 |
Add: The change in fair value (whether positive or negative) as of the vesting date of any awards granted in any prior FY for which all applicable vesting conditions were satisfied at the end of or during the covered FY |  | $ | (410,431 | ) |  | $ | (250,148 | ) |  |  |  | $ | (197,784 | ) |  | $ | (108,165 | ) |  |  |  | $ | 119,893 |  |  | $ | 60,392 |  |  |  |  | $ | (183,866 | ) |  | $ | (36,344 | ) |  |  |  | $ | 164,104 |  |  | $ | 27,739 |
Add: The dollar value of any dividend equivalents or other earnings paid on stock or option awards in the covered FY prior to the vesting date not otherwise reflected in the fair value of such award |  | $ | 65,443 |  |  | $ | 21,612 |  |  |  |  | $ | 139,135 |  |  | $ | 35,511 |  |  |  |  | $ | 232,446 |  |  | $ | 51,807 |  |  |  |  | $ | 143,377 |  |  | $ | 23,019 |  |  |  |  | $ | 215,470 |  |  | $ | 39,548 |
Total Compensation Actually Paid |  | $ | 2,234,759 |  |  | $ | 241,559 |  |  |  |  | $ | 3,485,983 |  |  | $ | 1,082,031 |  |  |  |  | $ | 5,290,632 |  |  | $ | 1,605,440 |  |  |  |  | $ | 1,552,612 |  |  | $ | 454,110 |  |  |  |  | $ | 5,047,454 |  |  | $ | 1,363,893 |
Non-PEO NEO Average Total Compensation Amount | $ 1,340,034 | 1,137,887 | 1,318,402 | 1,257,052 | 1,173,361
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,363,893 | 454,110 | 1,605,440 | 1,082,031 | 241,559
Adjustment to Non-PEO NEO Compensation Footnote |
2. | Amounts reported in this column are based upon total compensation reported for our CEO and our other NEOs in the SCT for the indicated reporting years and adjusted as shown in the table below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
|  | 2020 |  |  |  |  | 2021 |  |  |  |  | 2022 |  |  |  |  | 2023 |  |  |  |  | 2024 |
|  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |  |  |  |  | CEO |  |  | Other NEOs |
SCT Reported Compensation |  | $ | 5,004,033 |  |  | $ | 1,173,361 |  |  |  |  | $ | 4,577,539 |  |  | $ | 1,257,052 |  |  |  |  | $ | 4,745,379 |  |  | $ | 1,318,402 |  |  |  |  | $ | 5,229,962 |  |  | $ | 1,137,887 |  |  |  |  | $ | 4,977,194 |  |  | $ | 1,340,034 |
Deduct: SCT reported change in pension value |  | $ | (2,290,317 | ) |  | $ | (335,308 | ) |  |  |  | $ | (905,751 | ) |  | $ | (170,893 | ) |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | (1,384,964 | ) |  | $ | (155,884 | ) |  |  |  | $ | (528,636 | ) |  | $ | (142,187 | )
Add: “CAP” pension value |  | $ | 985,475 |  |  | $ | 73,716 |  |  |  |  | $ | 6,658 |  |  | $ | 118,549 |  |  |  |  | $ | 3,813 |  |  | $ | 115,378 |  |  |  |  | $ | 804 |  |  | $ | 35,117 |  |  |  |  | $ | 422 |  |  | $ | 51,637 |
Deduct: Grant date fair values of equity awards reported in “Stock Awards” column of the SCT for the covered FY |  | $ | (1,778,775 | ) |  | $ | (432,640 | ) |  |  |  | $ | (1,986,445 | ) |  | $ | (443,078 | ) |  |  |  | $ | (2,923,157 | ) |  | $ | (642,502 | ) |  |  |  | $ | (2,728,537 | ) |  | $ | (505,521 | ) |  |  |  | $ | (2,854,069 | ) |  | $ | (530,051 | )
Deduct: For any awards granted in any prior FY forfeited during the covered FY, the fair value at the end of the prior FY |  | $ | — |  |  | $ | (10,089 | ) |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | (104,376 | ) |  |  |  | $ | — |  |  | $ | — |
Add: Fair values as of the end of the covered FY of all equity awards granted during the covered FY outstanding and unvested as of the end of such covered FY |  | $ | 798,823 |  |  | $ | 154,306 |  |  |  |  | $ | 1,865,542 |  |  | $ | 416,058 |  |  |  |  | $ | 2,626,495 |  |  | $ | 577,278 |  |  |  |  | $ | 1,767,071 |  |  | $ | 242,652 |  |  |  |  | $ | 3,213,321 |  |  | $ | 596,766 |
Add: The change in fair value (whether positive or negative) as of the end of the covered FY of any equity awards granted in any prior FY outstanding and unvested as of the end of such covered FY |  | $ | (249,034 | ) |  | $ | (176,959 | ) |  |  |  | $ | (192,645 | ) |  | $ | (63,103 | ) |  |  |  | $ | 268,274 |  |  | $ | 61,234 |  |  |  |  | $ | (1,518,971 | ) |  | $ | (240,617 | ) |  |  |  | $ | (454,563 | ) |  | $ | (77,953 | )
Add: For awards granted and vested in the same FY, the fair value as of the vesting date |  | $ | 109,542 |  |  | $ | 23,708 |  |  |  |  | $ | 179,733 |  |  | $ | 40,100 |  |  |  |  | $ | 217,488 |  |  | $ | 63,451 |  |  |  |  | $ | 227,735 |  |  | $ | 58,177 |  |  |  |  | $ | 314,212 |  |  | $ | 58,361 |
Add: The change in fair value (whether positive or negative) as of the vesting date of any awards granted in any prior FY for which all applicable vesting conditions were satisfied at the end of or during the covered FY |  | $ | (410,431 | ) |  | $ | (250,148 | ) |  |  |  | $ | (197,784 | ) |  | $ | (108,165 | ) |  |  |  | $ | 119,893 |  |  | $ | 60,392 |  |  |  |  | $ | (183,866 | ) |  | $ | (36,344 | ) |  |  |  | $ | 164,104 |  |  | $ | 27,739 |
Add: The dollar value of any dividend equivalents or other earnings paid on stock or option awards in the covered FY prior to the vesting date not otherwise reflected in the fair value of such award |  | $ | 65,443 |  |  | $ | 21,612 |  |  |  |  | $ | 139,135 |  |  | $ | 35,511 |  |  |  |  | $ | 232,446 |  |  | $ | 51,807 |  |  |  |  | $ | 143,377 |  |  | $ | 23,019 |  |  |  |  | $ | 215,470 |  |  | $ | 39,548 |
Total Compensation Actually Paid |  | $ | 2,234,759 |  |  | $ | 241,559 |  |  |  |  | $ | 3,485,983 |  |  | $ | 1,082,031 |  |  |  |  | $ | 5,290,632 |  |  | $ | 1,605,440 |  |  |  |  | $ | 1,552,612 |  |  | $ | 454,110 |  |  |  |  | $ | 5,047,454 |  |  | $ | 1,363,893 |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |  |
Tabular List, Table | Most Important Measures Linking Avista NEO Pay to Performance — 2024 The following are the most important financial and non-financial performance measures, as determined by the Company, that link compensation actually paid to our NEOs to the Company’s performance for the most recently completed fiscal year.
• |  | EPS
• |  | 3-Year Relative TSR
• |  | Cost Per Customer
Total Shareholder Return Amount | $ 95 | 86 | 104 | 96 | 87
Peer Group Total Shareholder Return Amount | 118 | 88 | 103 | 103 | 86
Net Income (Loss) | $ 180,100,000 | $ 171,200,000 | $ 155,200,000 | $ 147,300,000 | $ 129,500,000
Company Selected Measure Amount | 2.39 | 2.24 | 2.12 | 2.1 | 1.9
PEO Name | Dennis Vermillion |  |  |  |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | EPS |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | 3-Year Relative TSR |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Cost Per Customer |  |  |  |
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ (2,854,069) | $ (2,728,537) | $ (2,923,157) | $ (1,986,445) | $ (1,778,775)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 3,213,321 | 1,767,071 | 2,626,495 | 1,865,542 | 798,823
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 314,212 | 227,735 | 217,488 | 179,733 | 109,542
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (454,563) | (1,518,971) | 268,274 | (192,645) | (249,034)
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 164,104 | (183,866) | 119,893 | (197,784) | (410,431)
PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 215,470 | 143,377 | 232,446 | 139,135 | 65,443
PEO | SCT reported change in pension value [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (528,636) | (1,384,964) | 0 | (905,751) | (2,290,317)
PEO | "CAP" pension value [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 422 | 804 | 3,813 | 6,658 | 985,475
PEO | For any awards granted in any prior FY forfeited during the covered FY, the fair value at the end of the prior FY [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 0 | 0 | 0 | 0 | 0
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (530,051) | (505,521) | (642,502) | (443,078) | (432,640)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 596,766 | 242,652 | 577,278 | 416,058 | 154,306
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 58,361 | 58,177 | 63,451 | 40,100 | 23,708
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (77,953) | (240,617) | 61,234 | (63,103) | (176,959)
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 27,739 | (36,344) | 60,392 | (108,165) | (250,148)
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 39,548 | 23,019 | 51,807 | 35,511 | 21,612
Non-PEO NEO | SCT reported change in pension value [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (142,187) | (155,884) | 0 | (170,893) | (335,308)
Non-PEO NEO | "CAP" pension value [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 51,637 | 35,117 | 115,378 | 118,549 | 73,716
Non-PEO NEO | For any awards granted in any prior FY forfeited during the covered FY, the fair value at the end of the prior FY [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 0 | $ (104,376) | $ 0 | $ 0 | $ (10,089)

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnVsPeerGroupTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 60 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478666/740-323-65-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-3 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480175/815-40-65-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-4 Reference 17: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-7 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 23: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 60B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-7 Reference 34: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A Reference 36: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B Reference 37: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=3
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ava_SctReportedChangeInPensionValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ava_capPensionValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ava_ForAnyAwardsGrantedinAnyPriorFYForfeitedDuringtheCoveredFYtheFairValueattheEndofthePriorFYMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |