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DIVIDENDS DECLARED PER SHARE | 3 Months Ended
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Mar. 31, 2016
DIVIDENDS DECLARED PER SHARE | NOTE 2 – DIVIDENDS DECLARED PER SHARE
Declaration Date |  | Date Paid (Payable) |  | Shareholder of Record Date |  | Dividend Amount
04/20/16 |  | 05/27/16 |  | 05/13/16 |  | $ 0.355
01/27/16 |  | 02/26/16 |  | 02/12/16 |  | $ 0.355
10/21/15 |  | 11/27/15 |  | 11/13/15 |  | $ 0.350
07/22/15 |  | 08/28/15 |  | 08/14/15 |  | $ 0.350
04/22/15 |  | 05/28/15 |  | 05/14/15 |  | $ 0.350
01/26/15 |  | 02/27/15 |  | 02/13/15 |  | $ 0.350

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- Definition Disclosure of Dividends Declared and Paid. + References No definition available. + Details
Name: | utl_DisclosureOfDividendsDeclaredAndPaidTextBlock
Namespace Prefix: | utl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration