Acquisitions and Dispositions (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets Acquired:
Current assets	$ 5	$ 814
Property and equipment	72	375
Other assets:
Broadcast licenses	766	8,123
Goodwill	812	4,533
Other intangibles, deferred costs and investments	0	398
Total other assets	1,578	13,054
Total assets acquired	1,655	14,243
Liabilities Assumed:
Current liabilities	5	41
Total liabilities assumed	5	41
Net assets acquired	$ 1,650	$ 14,202