Segment Data - Additional Information (Detail) $ in Thousands		3 Months Ended								12 Months Ended
	Jun. 30, 2014 Segment	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) Segment	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Total assets		$ 517,921				$ 524,962				$ 517,921	$ 524,962	$ 527,767
Net revenue		70,291	$ 65,281	$ 64,829	$ 58,113	65,432	$ 69,261	$ 59,891	$ 59,550	$ 258,514	254,134	242,038
Number of reportable segments | Segment	2									3
Pulpo Media Inc
Segment Reporting Information [Line Items]
Business acquisition date										Jun. 18, 2014
Mexico
Segment Reporting Information [Line Items]
Total assets		8,700				8,800				$ 8,700	8,800
Television
Segment Reporting Information [Line Items]
Total assets		$ 363,852				$ 367,869				363,852	367,869	380,775
Net revenue										$ 159,523	159,081	$ 165,472
Television | Television Station Channel Modification
Segment Reporting Information [Line Items]
Net revenue											$ 10,500