Assets Held For Sale and Sales of Real Estate (Details) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Assets held for sale	[1]	$ 93,188	$ 17,176
FCC Licenses
Assets held for sale		38,900	0
Wholly Owned Properties
Assets held for sale		$ 54,288	$ 17,176

[1] (4)See Note 4 for information regarding assets held for sale.