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Goodwill - Schedule of Key Assumptions in Discounted Cash Flow Analysis (Detail)	12 Months Ended
	Dec. 31, 2015
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Long-term revenue growth rate	2.50%
Discount rate	9.50%
Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Station operating income margins	23.50%
Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Station operating income margins	50.00%

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Long-term pre-tax operating income as a percentage of net sales, used as an input to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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