XML 47 R33.htm IDEA: XBRL DOCUMENT
v3.25.1

Leases (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Leases [Abstract] |
Future minimum lease payments | Future minimum lease payments for operating and finance lease obligations as of March 31, 2025 consisted of the following:
| Operating Leases |  | Finance Leases |  |  |
| (in millions)
2025 (remaining) | $ | 9.2 |  |  | $ | 3.7 |  |  |  |
2026 | 11.2 |  |  | 1.5 |  |  |  |
2027 | 8.0 |  |  | 0.4 |  |  |  |
2028 | 6.2 |  |  | 0.1 |  |  |  |
2029 | 5.8 |  |  | — |  |  |  |
Thereafter | 55.6 |  |  | — |  |  |  |
Total undiscounted future minimum lease obligations | 96.0 |  |  | 5.7 |  |  |  |
Less imputed interest | (34.0) |  |  | (0.2) |  |  |  |
Present value of net minimum lease obligations | $ | 62.0 |  |  | $ | 5.5 |  |  |  |
Balance sheet classification | The following table summarizes our operating and finance leases and their classification within the Consolidated Balance Sheet.
| March 31, 2025 |  | December 31, 2024
| (in millions)
Assets |  |  |
Operating - Other assets | $ | 61.8 |  |  | $ | 63.1 |
Finance - Property, plant, and equipment, net | 10.9 |  |  | 12.3 |
Total lease assets | 72.7 |  |  | 75.4 |
Liabilities |  |  |
Current |  |  |
Operating - Accrued liabilities | 8.5 |  |  | 8.6 |
Finance - Current portion of long-term debt | 4.2 |  |  | 5.2 |
Non-current |  |  |
Operating - Other liabilities | 53.5 |  |  | 54.7 |
Finance - Debt | 1.3 |  |  | 1.9 |
Total lease liabilities | $ | 67.5 |  |  | $ | 70.4 |

X
- Definition Assets and Liabilities, Leases + References No definition available. + Details
Name: | aca_AssetsAndLiabilitiesLeasesTableTextBlock
Namespace Prefix: | aca_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration