Subsequent Events (Details) - USD ($)										3 Months Ended									12 Months Ended
	Feb. 08, 2017	Feb. 03, 2017	Feb. 01, 2017	Jan. 31, 2017	Jan. 27, 2017	Jan. 02, 2017	Jun. 24, 2015	Apr. 09, 2015	Mar. 05, 2015	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015		Sep. 30, 2015	Jun. 30, 2015	Mar. 29, 2015	Dec. 31, 2016	Dec. 31, 2015		Dec. 28, 2014	Dec. 27, 2013
Subsequent Event [Line Items]
Total dividend payment										$ 21,612,000	$ 22,510,000	$ 22,959,000	$ 23,215,000	$ 23,555,000		$ 23,620,000	$ 24,100,000	$ 0	$ 90,296,000	$ 71,275,000
Long-term Debt										3,411,551,000				3,429,351,000	[1]				3,411,551,000	3,429,351,000	[1]
Pay down of Term B Loans																			27,842,000	1,114,262,000		$ 299,285,000
Scenario, Forecast
Subsequent Event [Line Items]
Expected Proceeds from Reverse Auction	$ 190,000,000
Senior Notes | Senior Notes 5.875% due 2022
Subsequent Event [Line Items]
Long-term Debt										1,084,563,000				$ 1,082,534,000	[1]				1,084,563,000	$ 1,082,534,000	[1]
Debt instrument interest rate, percent							5.875%
Term B Loans Facility | Amended Secured Credit Facility [Member]
Subsequent Event [Line Items]
Long-term Debt							$ 2,379,000,000
Premium payable							1.00%
Term B Loans Facility | Amended Secured Credit Facility [Member] | LIBOR
Subsequent Event [Line Items]
Variable minimum rate							0.75%
Spread on variable rate							3.00%
Term B Loans Facility | Amended Secured Credit Facility [Member] | Federal Funds Effective Swap Rate
Subsequent Event [Line Items]
Spread on variable rate							0.50%
Term B Loans Facility | Amended Secured Credit Facility [Member] | Adjusted LIBOR
Subsequent Event [Line Items]
Spread on variable rate							1.00%
Term B Loans Facility | Amended Secured Credit Facility [Member] | Base Rate
Subsequent Event [Line Items]
Spread on variable rate							2.00%
Revolving Credit Facility | Senior Secured Credit Agreement
Subsequent Event [Line Items]
Maximum borrowing capacity										$ 300,000,000									$ 300,000,000				$ 300,000,000
Subsequent Event
Subsequent Event [Line Items]
Expected Proceeds from Reverse Auction	$ 190,000,000
Subsequent Event | Gracenote Companies | Discontinued Operations, Disposed of by Sale
Subsequent Event [Line Items]
Disposal Group, Including Discontinued Operation, Consideration				$ 560,000,000
Proceeds from Divestiture of Businesses and Interests in Affiliates				$ 581,000,000
Subsequent Event | Interest Rate Swap | Designated as Hedging Instrument
Subsequent Event [Line Items]
Notional value					$ 500,000,000
Subsequent Event | Senior Notes 5.875% due 2022
Subsequent Event [Line Items]
Number of days principal amount of debt remains outstanding					91 days
Subsequent Event | Senior Notes | Senior Notes 5.875% due 2022
Subsequent Event [Line Items]
Principal amount of debt outstanding					$ 600,000,000
Debt instrument interest rate, percent					5.875%
Subsequent Event | Term C Loan Facility | Senior Secured Credit Agreement
Subsequent Event [Line Items]
Long-term Debt					$ 1,760,000,000
Premium payable					1.00%
Percent to require testing					35.00%
Subsequent Event | Term C Loan Facility | Senior Secured Credit Agreement | LIBOR
Subsequent Event [Line Items]
Variable minimum rate					0.75%
Spread on variable rate					3.00%
Subsequent Event | Term C Loan Facility | Senior Secured Credit Agreement | Federal Funds Effective Swap Rate
Subsequent Event [Line Items]
Spread on variable rate					0.50%
Subsequent Event | Term C Loan Facility | Senior Secured Credit Agreement | Adjusted LIBOR
Subsequent Event [Line Items]
Spread on variable rate					1.00%
Subsequent Event | Term C Loan Facility | Senior Secured Credit Agreement | Base Rate
Subsequent Event [Line Items]
Spread on variable rate					2.00%
Subsequent Event | Term B Loans Facility
Subsequent Event [Line Items]
Principal amount of debt outstanding					$ 250,000,000
Number of days principal amount of debt remains outstanding					91 days
Subsequent Event | Term B Loans Facility | Amended Secured Credit Facility [Member]
Subsequent Event [Line Items]
Pay down of Term B Loans			$ 400,000,000
Subsequent Event | Revolving Credit Facility | Senior Secured Credit Agreement
Subsequent Event [Line Items]
Maximum borrowing capacity					$ 420,000,000
Subsequent Event | Revolving Credit Facility | Senior Secured Credit Agreement | LIBOR
Subsequent Event [Line Items]
Variable minimum rate					0.00%
Spread on variable rate					3.00%
Subsequent Event | Revolving Credit Facility | Senior Secured Credit Agreement | Federal Funds Effective Swap Rate
Subsequent Event [Line Items]
Spread on variable rate					0.50%
Subsequent Event | Revolving Credit Facility | Senior Secured Credit Agreement | Adjusted LIBOR
Subsequent Event [Line Items]
Spread on variable rate					1.00%
Subsequent Event | Revolving Credit Facility | Senior Secured Credit Agreement | Base Rate
Subsequent Event [Line Items]
Spread on variable rate					2.00%
Special Cash Dividend
Subsequent Event [Line Items]
Dividends declared (usd per share)									$ 6.73										$ 0	$ 6.73		$ 0
Dividends paid (usd per share)								$ 6.73
Total dividend payment								$ 649,000,000												$ 648,644,000
Special Cash Dividend | Subsequent Event
Subsequent Event [Line Items]
Dividends declared (usd per share)						$ 5.77
Dividends paid (usd per share)		$ 5.77
Total dividend payment		$ 499,000,000

[1] (1) December 31, 2015 balances have been reclassified to present debt issuance costs as a direct deduction from the carrying amount of an associated debt liability in accordance with ASU 2015-03. See Note 1 for further information.