XML 30 R21.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Dividends Declared Per Share (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2024
DIVIDENDS DECLARED PER SHARE [Abstract] |
Schedule of Dividends Declared |
Declaration Date |  | Date Paid (Payable) |  | Shareholder of Record Date |  | Dividend Amount |
07/31/24 |  | 08/29/24 |  | 08/15/24 |  | $ | 0.425 |
05/01/24 |  | 05/31/24 |  | 05/16/24 |  | $ | 0.425 |
01/31/24 |  | 02/29/24 |  | 02/14/24 |  | $ | 0.425 |
10/23/23 |  | 11/28/23 |  | 11/14/23 |  | $ | 0.405 |
07/26/23 |  | 08/28/23 |  | 08/14/23 |  | $ | 0.405 |
04/26/23 |  | 05/30/23 |  | 05/15/23 |  | $ | 0.405 |
01/25/23 |  | 02/28/23 |  | 02/14/23 |  | $ | 0.405 |

X
- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
Name: | us-gaap_DividendsDeclaredTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | utl_DividendsDeclaredPerShareAbstract
Namespace Prefix: | utl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration