CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 172,789	$ 151,187
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax	3,129	(29,167)
Pension liability adjustment, net of tax	449	1,030
Comprehensive income	176,367	123,050
Less: comprehensive income attributable to noncontrolling interests	44,370	43,287
Comprehensive income attributable to SNI	$ 131,997	$ 79,763