Additional Equipment Deployment Costs Percentage

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- Definition

Customer Contract Term

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- Definition

Customer Contract Term Extension Option

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- Definition

Decrease In Revenues Percentage

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- Definition

Equipment Deployment Costs Percentage

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- Definition

MTA equipment deployment costs

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- Definition

Number Of Display Additions

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Number Of Displays

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- Definition

Other Commitment Percentage

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- Definition

Surety Bonds Outstanding

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- Definition

Amount of increase (decrease) in current assets classified as other.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred.

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
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Commitment and Contingencies - Narrative (Details)			3 Months Ended	7 Months Ended	12 Months Ended	21 Months Ended	60 Months Ended	80 Months Ended
Commitment and Contingencies - Narrative (Details)	Jul. 29, 2021 Displays	Jul. 28, 2021	Mar. 31, 2022 USD ($) Displays	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2022 USD ($) Displays	Dec. 31, 2026	Apr. 01, 2028 USD ($)
Other Commitments [Line Items]
MTA equipment deployment costs limit			$ 361,200,000	$ 291,000,000.0	$ 348,000,000.0	$ 361,200,000
Equipment Deployment Costs Percentage				30.00%
Standalone letters of credit and sublimit to revolving credit facility
Other Commitments [Line Items]
Letters of credit outstanding, amount			76,800,000			76,800,000
Surety Bond
Other Commitments [Line Items]
Surety bonds outstanding			167,100,000			167,100,000
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]
Other current assets			100,000		6,200,000
MTA Funding
Other Commitments [Line Items]
Other current assets			$ (3,100,000)		$ (29,000,000.0)	$ (48,500,000)
Metropolitan Transportation Authority ("MTA")
Other Commitments [Line Items]
Equipment Deployment Costs Percentage				70.00%
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 limit				$ 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
MTA smaller-format digital advertising screens rolling stock
Other Commitments [Line Items]
Number of displays \| Displays	15,896
MTA communication displays
Other Commitments [Line Items]
Number of displays \| Displays	9,283
MTA displays installed
Other Commitments [Line Items]
Number of displays \| Displays			12,479			12,479
Number of display additions \| Displays			1,387