Commitments and Contingencies - Additional Information (Detail)
$ in Millions |
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1 Months Ended |
12 Months Ended |
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Nov. 07, 2014
USD ($)
seller
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Apr. 25, 2014
USD ($)
Station
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Jan. 02, 2014
USD ($)
Station
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Aug. 31, 2015
lawsuit
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Dec. 31, 2015
USD ($)
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Dec. 31, 2014
USD ($)
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| ABS Entertainment, Inc, et al v Cumulus Media Inc and ABS Entertainment, Inc v Cumulus Media Inc | Pending Litigation |
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| Supply Commitment [Line Items] |
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| Number of class action lawsuits | lawsuit |
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2
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| Country Weekly Acquisition |
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| Supply Commitment [Line Items] |
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| Number of sellers | seller |
1
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| Fee for agreement |
$ 1.0
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| Period of agreement |
6 years
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| Corporate Expenses |
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| Supply Commitment [Line Items] |
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| Restructuring costs |
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$ 10.2
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| Exit Plan | Contract Termination | Corporate Expenses |
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| Supply Commitment [Line Items] |
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| Restructuring costs |
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$ 5.2
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| Accounts Payable and Accrued Expenses |
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| Supply Commitment [Line Items] |
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| Liabilities for restructuring costs |
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9.8
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| Accounts Payable and Accrued Expenses | Exit Plan | Contract Termination |
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| Supply Commitment [Line Items] |
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| Current restructuring costs |
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0.5
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| Other Liabilities | Exit Plan | Contract Termination |
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| Supply Commitment [Line Items] |
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| Noncurrent restructuring liabilities |
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3.9
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| Merlin Media LLC |
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| Supply Commitment [Line Items] |
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| Monthly management fee, first year |
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$ 0.3
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| Monthly management fee, second year |
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0.4
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| Monthly management fee, third year |
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0.5
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| Monthly management fee, fourth year |
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0.6
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| Merlin Media LLC | Call Option | Maximum |
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| Supply Commitment [Line Items] |
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| Amount under option agreement to settle management fees |
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70.0
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| Merlin Media LLC | Call Option | Minimum |
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| Supply Commitment [Line Items] |
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| Amount under option agreement to settle management fees |
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$ 50.0
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| Merlin Media LLC | Put Option |
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| Supply Commitment [Line Items] |
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| Number of radio stations | Station |
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2
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| Amount under option agreement to settle management fees |
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$ 71.0
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| Period after commencement date to settle management fees |
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4 years
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| Period to exercise option |
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10 days
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| Universal Media Access, LLC |
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| Supply Commitment [Line Items] |
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| Number of radio stations | Station |
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1
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| Fixed fee under LMA |
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$ 1.4
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| Term under LMA |
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2 years
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| Net termination fees |
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$ 2.5
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| Universal Media Access, LLC | Call Option | Maximum |
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| Supply Commitment [Line Items] |
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| Amount under option agreement to settle management fees |
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14.8
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| Universal Media Access, LLC | Put Option |
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| Supply Commitment [Line Items] |
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| Amount under option agreement to settle management fees |
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$ 14.8
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| Period to exercise option |
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10 days
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| Nielsen Audio |
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| Supply Commitment [Line Items] |
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| Aggregate obligations outstanding |
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$ 99.7
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