Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Income Before Income Tax

Income before income taxes consisted of the following for the years ended December 31 (in millions):

	2025		2024		2023
Domestic	$	132.1	$	118.1	$	90.1
Foreign	11.1		7.6		6.4
Total	$	143.2	$	125.7	$	96.5

Schedule of Components of Income Tax Expense (Benefit) from Continuing Operations

The components of income tax expense for the years ended December 31 are as follows (in millions):

	2025		2024		2023
Current:
Federal	$	22.1	$	32.0	$	22.6
State	10.2		14.7		11.2
Foreign	2.8		2.4		1.6
Total current expense (benefit)	35.1		49.1		35.4
Deferred:
Federal	2.0		(9.9)		(6.3)
State	(0.5)		—		0.5
Foreign	—		(0.3)		(0.2)
Total deferred expense (benefit)	1.5		(10.2)		(6.0)
Total tax expense (benefit)	$	36.6	$	38.9	$	29.4

Schedule of Cash Flow, Supplemental Disclosures

The income tax paid, net of refunds, by the Company for the years ended December 31 are as follows (in millions):

	2025		2024		2023
Federal	$	22.1	$	32.0	$	25.9
State	9.1		14.5		12.3
Foreign	3.0		2.0		(0.4)
Total	$	34.2	$	48.5	$	37.8

Income taxes paid, net of refunds, exceed five percent of total income taxes paid (net) in the following jurisdictions (in millions):

	2025		2024		2023
State:
Massachusetts	$	5.0	$	9.1	$	7.4

Schedule of Reconciliation of Statutory and Effective Income Tax Rates for Continuing Operations

The differences between income taxes expected at the U.S. federal statutory income tax rate and income taxes reported for the years ended December 31 are as follows (in millions):

	2025				2024				2023
	$		%		$		%		$		%
Tax at U.S. federal statutory income tax rate	$	30.1	21.0	%	$	26.4	21.0	%	$	20.3	21.0	%
State income taxes, net of federal benefit	7.7		5.5	%	11.3		9.0	%	5.6		5.8	%
Foreign Tax Effects
Other foreign jurisdictions	0.7		0.5	%	0.4		0.3	%	—		—	%
Effective of change in tax laws or rates enacted in the current period	—		—	%	—		—	%	3.3		3.5	%
Effect of cross-border tax laws	0.7		0.5	%	0.9		0.8	%	0.6		0.6	%
Nontaxable or nondeductible items
Executive Compensation	2.2		1.5	%	0.3		0.2	%	0.2		0.2	%
Other	(0.1)		(0.1)	%	(0.3)		(0.2)	%	(0.4)		(0.4)	%
Changes in unrecognized tax benefits	(0.1)		(0.1)	%	0.3		0.2	%	0.2		0.2	%
Other Adjustments
Non-controlling interest	(5.6)		(3.9)	%	(0.4)		(0.3)	%	(0.3)		(0.3)	%
Other	1.0		0.7	%	—		—	%	(0.1)		(0.1)	%
Effective income tax rate	$	36.6	25.6	%	$	38.9	31.0	%	$	29.4	30.5	%

Significant Components of Deferred Tax Assets and Deferred Tax Liabilities

The significant components of deferred tax assets and deferred tax liabilities for the years ended December 31 are as follows (in millions):

	2025		2024
Deferred tax assets:
Investment in partnerships	74.1		73.4
Employee compensation	1.2		1.3
Other	3.0		2.6
Cash flow hedge	—		1.6
Total deferred tax assets	78.3		78.9
Valuation allowance	—		—
Deferred tax assets, net of valuation allowance	78.3		78.9
Deferred tax liabilities:
Other	0.8		0.6
Total deferred tax liabilities	0.8		0.6
Net deferred tax assets	$	77.5	$	78.3

Schedule of Reconciliation of Change in Gross Unrecognized Tax Benefits

A reconciliation of the change in gross unrecognized tax benefits for the years ended December 31 is as follows (in millions):

	2025		2024		2023
Balance as of January 1	$	1.3	$	1.1	$	0.9
Additions based on current year tax positions	0.4		0.3		0.7
Reductions related to lapses of statutes of limitations	(0.6)		(0.1)		(0.5)
Balance as of December 31	$	1.1	$	1.3	$	1.1