Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Comprehensive income
Net income	$ 1,376,566	$ 3,950,602	$ 1,062,669
Available-for-sale securities:
Unrealized (losses) gains on available-for-sale securities, net of taxes of $8,518, $(86), and $(1,724) for 2011, 2012, and 2013, respectively	6,776	7,571	(17,244)
Reclassification adjustment for realized losses (gains) on available-for-sale securities included in net income, net of taxes of $(648), $(5,197), and $479 for 2011, 2012, and 2013, respectively	(796)	9,088	972
Net change in unrealized gains (losses) on available-for-sale securities, net of tax	5,980	16,659	(16,272)
Foreign currency translation adjustments ("CTA"):
Foreign CTA gains (losses), net of taxes of $101, $(143), and $496 for 2011, 2012, and 2013, respectively	(577,711)	(9,334)	209,887
Net investment hedge CTA gains (losses), net of taxes of $0 for both of 2011 and 2012 and $(193) million for 2013	317,459	3,241
Reclassification adjustment for CTA, net of taxes of $0, $68 million, and $0 for 2011, 2012, and 2013 respectively		(137,186)
Net foreign CTA gains (losses), net of tax	(260,252)	(143,279)	209,887
Cash flow hedges:
Unrealized gains (losses) on cash flow hedges, net of taxes of $0 for both of 2011 and 2012, and $(1,199) for 2013	3,492
Reclassification adjustment for realized (gains) losses on cash flow hedges, net of taxes of $0 for both of 2011 and 2012, and $575 for 2013	(2,080)
Net change in unrealized gains (losses) on cash flow hedges, net of tax	1,412
Other comprehensive income (loss)	(252,860)	(126,620)	193,615
Comprehensive income	1,123,706	3,823,982	1,256,284
Less: Comprehensive income attributable to noncontrolling interests	(10,285)	(5,123)	(13,842)
Comprehensive income attributable to Yahoo! Inc.	$ 1,113,421	$ 3,818,859	$ 1,242,442