XML 51 R38.htm IDEA: XBRL DOCUMENT
v3.25.3

Lines of Credit and Financing Arrangements (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Debt Disclosure [Abstract] |
Summary of outstanding debt obligations | The following table summarizes our outstanding debt obligations and their classification in the accompanying Consolidated Balance Sheets (in millions) as of:
| September 30, 2025 |  | December 31, 2024
Commercial paper | $ | 157.0 |  |  | $ | — |
Current maturities of long-term debt: |  |  |
Finance lease obligations | $ | 16.9 |  |  | $ | 14.9 |
Senior unsecured notes | — |  |  | 300.0 |
Debt issuance costs | — |  |  | (0.4) |
Total current maturities of long-term debt | $ | 16.9 |  |  | $ | 314.5 |
Long-Term Debt: |  |  |
Finance lease obligations | $ | 44.7 |  |  | $ | 39.5 |
Senior unsecured notes | 800.0 |  |  | 800.0 |
Debt issuance costs | (6.5) |  |  | (6.4) |
Total long-term debt | $ | 838.2 |  |  | $ | 833.1 |
Total debt | $ | 1,012.1 |  |  | $ | 1,147.6 |
Summary of weighted average borrowing rate facility | Our weighted average borrowing rate on the Program was as follows as of:
| September 30, 2025 |  | December 31, 2024
Weighted average borrowing rate | 4.30 | % |  | — | %
Our weighted average borrowing rate on the Amended Credit Agreement was as follows as of:
| September 30, 2025 |  | December 31, 2024
Weighted average borrowing rate | — | % |  | — | %

X
- Definition Weighted average borrowing rate facility. + References No definition available. + Details
Name: | lii_WeightedAverageBorrowingRateFacilityTableTextBlock
Namespace Prefix: | lii_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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