XML 34 R23.htm IDEA: XBRL DOCUMENT v3.25.1

DEBT AND FINANCING ARRANGEMENTS (Tables)

3 Months Ended

Mar. 31, 2025

Details on Long Term Debt

Details on long-term debt at March 31, 2025, March 31, 2024 and December 31, 2024 are shown below.

(millions)		March 31,								December 31,
		2025				2024				2024
Unitil Corporation:
3.70% Senior Notes, Due August 1, 2026		$	30.0			$	30.0			$	30.0
3.43% Senior Notes, Due December 18, 2029			30.0				30.0				30.0
5.99% Senior Notes, Due August 21, 2034			20.0				—				20.0
Unitil Energy First Mortgage Bonds:
6.96% Senior Secured Notes, Due September 1, 2028			8.0				10.0				8.0
8.00% Senior Secured Notes, Due May 1, 2031			10.5				12.0				10.5
6.32% Senior Secured Notes, Due September 15, 2036			15.0				15.0				15.0
3.58% Senior Secured Notes, Due September 15, 2040			27.5				27.5				27.5
4.18% Senior Secured Notes, Due November 30, 2048			30.0				30.0				30.0
5.69% Senior Secured Notes, Due August 21, 2054			40.0				—				40.0
Fitchburg:
3.52% Senior Notes, Due November 1, 2027			10.0				10.0				10.0
7.37% Senior Notes, Due January 15, 2029			4.8				6.0				6.0
5.90% Senior Notes, Due December 15, 2030			15.0				15.0				15.0
7.98% Senior Notes, Due June 1, 2031			14.0				14.0				14.0
5.70% Senior Notes, Due July 2, 2033			12.0				12.0				12.0
5.54% Senior Notes, Due August 21, 2034			12.5				—				12.5
3.78% Senior Notes, Due September 15, 2040			27.5				27.5				27.5
5.99% Senior Notes, Due August 21, 2044			12.5				—				12.5
4.32% Senior Notes, Due November 1, 2047			15.0				15.0				15.0
5.96% Senior Notes, Due July 2, 2053			13.0				13.0				13.0
Northern Utilities:
3.52% Senior Notes, Due November 1, 2027			20.0				20.0				20.0
5.54% Senior Notes, Due August 21, 2034			25.0				—				25.0
7.72% Senior Notes, Due December 3, 2038			50.0				50.0				50.0
5.74% Senior Notes, Due August 21, 2039			15.0				—				15.0
3.78% Senior Notes, Due September 15, 2040			40.0				40.0				40.0
4.42% Senior Notes, Due October 15, 2044			50.0				50.0				50.0
4.32% Senior Notes, Due November 1, 2047			30.0				30.0				30.0
4.04% Senior Notes, Due September 12, 2049			40.0				40.0				40.0
Granite State:
3.72% Senior Notes, Due November 1, 2027			15.0				15.0				15.0
5.74% Senior Notes, Due August 21, 2034			10.0				—				10.0
Unitil Realty Corp.:
2.64% Senior Secured Notes, Due December 18, 2030			3.7				4.0				3.8
Total Long-Term Debt			646.0				516.0				647.3
Less: Unamortized Debt Issuance Costs			3.9				3.2				4.0
Total Long-Term Debt, net of Unamortized Debt Issuance    Costs			642.1				512.8				643.3
Less: Current Portion			4.9				4.9				4.9
Total Long-term Debt, Less Current Portion		$	637.2			$	507.9			$	638.4

Fair Value of Long Term Debt

(millions)		March 31,								December 31,
		2025				2024				2024
Estimated Fair Value of Long-Term Debt		$	590.9			$	465.6			$	598.9

Borrowing Limits Amounts Outstanding and Amounts Available under Credit Facility

		Revolving Credit Facility (millions)
		March 31,								December 31,
		2025				2024				2024
Limit		$	275.0			$	200.0			$	200.0
Short-Term Borrowings Outstanding			172.9				169.9				105.8
Available		$	102.1			$	30.1			$	94.2

Classification of the Company Lease Obligations

The balance sheet classification of the Company’s lease obligations was as follows:

		March 31,								December 31,
Lease Obligations (millions)		2025				2024				2024
Operating Lease Obligations:
Operating Lease Obligations (current portion)		$	1.8			$	1.8			$	1.8
Operating Lease Obligations (long-term portion)			4.4				3.8				4.9
Total Operating Lease Obligations			6.2				5.6				6.7
Capital Lease Obligations:
Other Current Liabilities (current portion)			0.1				0.1				0.1
Other Noncurrent Liabilities (long-term portion)			0.3				0.3				0.4
Total Capital Lease Obligations			0.4				0.4				0.5
Total Lease Obligations		$	6.6			$	6.0			$	7.2

Future Operating Lease Payment Obligations and Future Minimum Lease Payments under Capital Leases

The following table is a schedule of future operating lease payment obligations and future minimum lease payments under capital leases as of March 31, 2025. The payments for operating leases consist of $1.8 million of current operating lease obligations and $4.4 million of noncurrent operating lease obligations, which are included in Other Noncurrent Liabilities, on the Company’s Consolidated Balance Sheets as of March 31, 2025. The payments for capital leases consist of $0.1 million of current capital lease obligations, which are included in Other Current Liabilities and $0.3 million of noncurrent capital lease obligations, which are included in Other Noncurrent Liabilities, on the Company’s Consolidated Balance Sheets as of March 31, 2025.

Lease Payments ($000’s)		Operating				Capital
Year Ending December 31,		Leases				Leases
Rest of 2025		$	1,543			$	110
2026			1,839				153
2027			1,519				131
2028			958				45
2029			628				22
2030 - 2034			404				—
Total Payments			6,891				461
Less: Interest			707				36
Amount of Lease Obligations Recorded on Consolidated    Balance Sheets		$	6,184			$	425

X

- Definition

Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69E

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-8

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-6

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-7

+ Details

Name:	us-gaap_ScheduleOfDebtInstrumentsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfDebtTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule of Capital Leases Obligations [Table Text Block]

+ References

No definition available.

+ Details

Name:	utl_ScheduleOfCapitalLeasesObligationsTableTextBlock
Namespace Prefix:	utl_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule Of Future Minimum Payments For Obligations [Table Text Block]

+ References

No definition available.

+ Details

Name:	utl_ScheduleOfFutureMinimumPaymentsForObligationsTableTextBlock
Namespace Prefix:	utl_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration