Fair Value Measurements - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended
Aug. 31, 2019 USD ($)	Aug. 31, 2019 USD ($)
Indefinite Lived Intangible Assets By Major Class [Line Items]
Impairment charge		$ 4.0
FCC Licenses
Indefinite Lived Intangible Assets By Major Class [Line Items]
Impairment charge	$ 4.0
Fair values of indefinite-lived intangible assets	15.5	15.5
WLIB-AM
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair values of indefinite-lived intangible assets	$ 6.7	$ 6.7

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

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