CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Assets
Cash and cash equivalents	$ 45.2	$ 40.9
Accounts receivable, net	74.1	68.4
Contract assets	15.7	16.7
Inventory	4.0	5.7
Prepaid expenses and other current assets	7.8	11.4
Assets held for sale	0.4	0.8
Total current assets	147.2	143.9
Property and equipment, net	214.9	224.3
Intangible assets, net	5.0	5.6
Operating leases, right-of-use assets	4.9	7.0
Other assets	0.8	0.8
Total assets	372.8	381.6
Liabilities and Stockholders' Equity
Accounts payable	24.3	27.2
Accrued expenses	25.5	28.2
Other financing liability, current portion	0.7	0.7
Short-term lease liability	8.5	8.7
Other current liabilities	0.7	0.4
Total current liabilities	59.7	65.2
Long-term lease liability	11.4	14.1
Other financing liability	9.8	10.3
Deferred tax liability	21.8	18.2
Other long-term liabilities	0.1	0.0
Total liabilities	102.8	107.8
Commitments and contingencies (Note 15)
Stockholders' equity
Preferred stock, $0.01 per share; 50,000,000 shares authorized; no shares issued or outstanding as of September 30, 2025 and December 31, 2024	0.0	0.0
Less: Class A Common Stock held in treasury at cost; 4,155,728 treasury shares as of September 30, 2025 and 3,877,628 treasury shares as of December 31, 2024	(50.2)	(38.6)
Retained earnings	47.2	42.2
Additional paid-in capital	272.7	269.9
Total stockholders' equity	270.0	273.8
Total liabilities and stockholders' equity	372.8	381.6
Class A Common Stock
Stockholders' equity
Common stock	0.3	0.3
Class B Common Stock
Stockholders' equity
Common stock	$ 0.0	$ 0.0