Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Thousands				9 Months Ended
	Nov. 30, 2019 USD ($)	Nov. 25, 2019 USD ($) vote Director $ / shares shares	Oct. 01, 2019 USD ($)	Nov. 30, 2019 USD ($)	Nov. 30, 2018 USD ($)	Aug. 31, 2019	Mar. 01, 2019 USD ($)
Noncontrolling Interest [Line Items]
LMA fees					$ 700
Repayment of debt			$ 9,900	$ 44,619	$ 57,850
Operating lease right-of-use assets	$ 8,634			8,634
Accounting Standards Update 2016-02
Noncontrolling Interest [Line Items]
Operating lease liabilities							$ 28,800
Operating lease right-of-use assets							$ 28,800
Contribution Agreement
Noncontrolling Interest [Line Items]
Gross cash proceeds, inclusive of purchase price adjustments		$ 91,800
Transaction-related expenses		2,200
Repayment of debt		3,500
Recognize gain		$ 35,600
Contribution Agreement | MediaCo Holding Inc
Noncontrolling Interest [Line Items]
Percentage of outstanding voting interest	3.05%
Board of directors appointed | Director		3
Management fee		$ 1,250
Debt instrument, basis spread on variable rate		7.50%
Senior credit facility amount		$ 0
Debt instrument, interest rate percentage		6.00%
Additional payment of interest in kind		1.00%
Debt instrument increasing interest rate of second anniversary		1.00%
Debt instrument increasing interest rate of each successive anniversary		1.00%
Debt instrument, maturity date		Nov. 25, 2024
Receivable related to net working capital	$ 8,500			$ 8,500
Contribution Agreement | MediaCo Holding Inc | Base Rate
Noncontrolling Interest [Line Items]
Convertible promissory note acquired in disposal of assets		$ 5,000
Contribution Agreement | MediaCo Holding Inc | London Interbank Offered Rate
Noncontrolling Interest [Line Items]
Debt instrument, basis spread on variable rate		2.00%
Contribution Agreement | MediaCo Holding Inc | Class A Common Stock
Noncontrolling Interest [Line Items]
Percentage of common stock acquired in disposal of assets		23.72%
Percentage of outstanding voting interest		3.02%
Common stock taxable pro rate distribution of per share | $ / shares		$ 0.1265
Contribution Agreement | MediaCo Holding Inc | Common Stock
Noncontrolling Interest [Line Items]
Cash received from disposal of assets		$ 91,500
Convertible promissory note acquired in disposal of assets		$ 5,000
Convertible promissory note acquired from issued shares in disposal of assets | shares		1,666,667
Vote per share | vote		1
Contribution Agreement | MediaCo Holding Inc | Standard General L.P
Noncontrolling Interest [Line Items]
Board of directors appointed | Director		4
Contribution Agreement | MediaCo Holding Inc | Standard General L.P | Class B Common Stock
Noncontrolling Interest [Line Items]
Percentage of common stock purchased		76.28%
Vote per share | vote		10
Austin Radio Partnership
Noncontrolling Interest [Line Items]
Gain (loss) on disposition of assets			37,300
Gross cash proceeds, inclusive of purchase price adjustments			40,700
Transaction-related expenses			$ 700
Austin Radio Partnership
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners						50.10%
Sinclair Telecable Inc | Austin Radio Partnership
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners			50.10%
Estimated gross proceeds from sale of property plant and intangible assets held for sale			$ 39,300
Austin Radio Partnership
Noncontrolling Interest [Line Items]
Percentage Of Controlling Interest			50.10%
Digonex Technologies Inc
Noncontrolling Interest [Line Items]
Percentage Of Controlling Interest				84.00%