Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue (less agency commissions)	$ 812,465	$ 597,356	$ 508,134
Operating expenses before depreciation, amortization, and loss on disposals of assets, net:
Broadcast	475,131	374,182	285,990
Corporate and administrative	40,347	34,343	29,203
Depreciation	45,923	36,712	30,248
Amortization of intangible assets	16,596	11,982	8,297
Loss on disposals of assets, net	329	80	623
Operating expenses	578,326	457,299	354,361
Operating income	234,139	140,057	153,773
Other income (expense):
Miscellaneous income, net	775	103	23
Interest expense	(97,236)	(74,411)	(68,913)
Loss from early extinguishment of debt	(31,987)		(5,086)
Income before income taxes	105,691	65,749	79,797
Income tax expense	43,418	26,448	31,736
Net trade income (loss)	$ 62,273	$ 39,301	$ 48,061
Basic per share information:
Net income (in dollars per share)	$ 0.87	$ 0.58	$ 0.83
Weighted average shares outstanding (in shares)	71,848	68,330	57,862
Diluted per share information:
Net income (in dollars per share)	$ 0.86	$ 0.57	$ 0.82
Weighted average shares outstanding (in shares)	72,764	68,987	58,364
Dividends declared per common share (in dollars per share)	$ 0	$ 0