Related Party Transactions (Prog) (Details)				3 Months Ended		12 Months Ended
	Feb. 29, 2016 item	Oct. 01, 2014 USD ($)	Sep. 12, 2014 USD ($) item	Mar. 31, 2016 USD ($) ft²	Mar. 31, 2015 USD ($)	Dec. 31, 2011 USD ($) item	Dec. 31, 2008 USD ($) item	Dec. 31, 2015 USD ($) item	Jul. 28, 2015 USD ($)
Related Party Transactions
Advertising revenue recognized				$ 100,763,000	$ 78,378,000
Programming rights				289,412,000				$ 272,016,000
Trademark licenses
Related Party Transactions
Licenses amount reflected in the condensed consolidated balance sheets				$ 0
Period after which entity will be in default for not complying with the standards				10 days
Period after which entity will be in default for failure to make payment under loan agreement				5 days
Hallmark Hall of Fame Productions, LLC
Related Party Transactions
Number of movies under agreement | item			2
Number of movies aired on Hallmark Channel | item								4
Number of movies premiered under agreement | item			2
Hallmark Hall of Fame Productions, LLC | Exclusive television license
Related Party Transactions
Number of movies under agreement | item						16	58
Number of movies under contemporary Hallmark Hall of Fame titles | item							16
Number of movies under older titles | item							42
Period of license of titles		10 years				10 years	10 years
Total license fees payable						$ 10,000,000	$ 17,200,000
Exhibition windows over which the program license fees are payable in equal monthly installments						10 years	10 years
License fee per movie		$ 660,000
Hallmark Cards
Related Party Transactions
Number of movies under agreement | item	2
Advertising revenue to be recognized									$ 2,300,000
Advertising revenue recognized			$ 3,800,000
Amount received under agreement			$ 3,000,000
Hallmark Cards | Sublease agreement
Related Party Transactions
Future minimum lease payments under the agreement				$ 102,000
Leased space (in square feet) | ft²				5,681