Label	Element	Value
Equity Method Investments	us-gaap_EquityMethodInvestments	$ 54,238,000
Audio Segment [Member]
Goodwill	us-gaap_Goodwill	3,219,210,000
Audio and Media Services Segment [Member]
Goodwill	us-gaap_Goodwill	104,155,000
Equity Method Investments [Member]
Equity Method Investments	us-gaap_EquityMethodInvestments	9,643,000
Cost-method Investments [Member]
Equity Method Investments	us-gaap_EquityMethodInvestments	29,512,000
Notes Receivable [Member]
Equity Method Investments	us-gaap_EquityMethodInvestments	15,083,000
Marketable Equity Securities [Member]
Equity Method Investments	us-gaap_EquityMethodInvestments	$ 0