Commitment and Contingencies - Narrative (Details)				3 Months Ended	12 Months Ended	36 Months Ended		60 Months Ended	80 Months Ended
	Feb. 17, 2026 USD ($)	Jul. 29, 2021 Displays	Jul. 28, 2021	Mar. 31, 2026 USD ($) Displays	Dec. 31, 2026 USD ($)	Feb. 16, 2029 USD ($) numberOfPayments	Feb. 16, 2029	Dec. 31, 2026	Apr. 01, 2028 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2020 USD ($)
Other Commitments [Line Items]
MTA equipment deployment costs				$ 27,300,000						$ 27,400,000	$ 11,900,000
Standalone letters of credit and sublimit to revolving credit facility
Other Commitments [Line Items]
Letters of credit outstanding, amount				72,300,000
Surety Bond
Other Commitments [Line Items]
Surety bonds outstanding				109,000,000.0
AdQuick Agreement [Member]
Other Commitments [Line Items]
Investment, Acquisition Date	Feb. 17, 2026
License fee				2,000,000.0
Investment Owned, Cost	$ 20,000,000.0
Payments to Acquire Investments	$ 4,000,000.0
AdQuick Agreement [Member] | Subsequent event
Other Commitments [Line Items]
Software License Contract Term							3 years
License fee					$ 17,000,000.0
Payments to Acquire Investments						$ 4,000,000.0
Number Of Payments To Acquire Investments | numberOfPayments						4
MTA Agreement
Other Commitments [Line Items]
Contract term		13 years	10 years
Contract term extension option		5 years
MTA Agreement | Subsequent event
Other Commitments [Line Items]
Revenue share percentage								65.00%
Additional equipment deployment cost percentage									2.50%
MTA equipment deployment costs
Other Commitments [Line Items]
Recoupment				$ 0
Maximum | MTA Agreement | Subsequent event
Other Commitments [Line Items]
Decrease in revenue percentage									5.00%
Maximum | Metropolitan Transportation Authority ("MTA")
Other Commitments [Line Items]
MTA equipment deployment costs												$ 50,700,000
Minimum | Subsequent event
Other Commitments [Line Items]
Recoupment									$ 0
MTA digital advertising screens on subway and train platforms
Other Commitments [Line Items]
Number of displays | Displays		5,433		5,015
MTA smaller-format digital advertising screens rolling stock
Other Commitments [Line Items]
Number of displays | Displays		15,896		15,904
MTA communication displays
Other Commitments [Line Items]
Number of displays | Displays		9,283		6,435
MTA displays installed
Other Commitments [Line Items]
Number of displays | Displays				27,354
Number of display additions | Displays				0