Condensed Consolidated Statements Of Cash Flows Statement (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	$ 611,198	[1]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	595,000
Gracenote Companies | Discontinued Operations, Disposed of by Sale
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Disposal Group, Including Discontinued Operations	$ 16,000

[1] (1)Cash, cash equivalents and restricted cash at the beginning of the six months ended June 30, 2017 of $611 million are comprised of $595 million of cash, cash equivalents and restricted cash from continuing operations as reflected in the Company’s unaudited Condensed Consolidated Balance Sheets and $16 million of cash, cash equivalents and restricted cash reflected in current assets of discontinued operations.