Description of business, basis of presentation and summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Disaggregation of Revenue

Revenue earned by categories in 2018, 2017 and 2016 are shown below (amounts in thousands):

	Year ended Dec. 31,
	2018		2017		2016
Advertising & Marketing Services	$	1,106,754	$	1,139,642	$	1,237,735
Subscription	840,838		718,750		581,733
Political	233,613		23,258		154,808
Other	26,077		21,376		19,844
Former Digital Business	—		—		9,968
Total revenues	$	2,207,282	$	1,903,026	$	2,004,088