Note 3 - Business Combinations Prior Years Acquisitions (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2011 Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2011 GMarket [Member]	Dec. 31, 2010 Marketplaces [Member]	Dec. 31, 2009 Marketplaces [Member] GMarket [Member]
Business Acquisition [Line Items]
Aggregate purchase consideration	$ 3,439,147,000	$ 401,713,000	$ 1,226,968,000	$ 95,900,000
Net tangible assets				300,000
Purchased Intangible Assets	1,188,120,000	163,677,000	378,496,000	18,000,000
Goodwill	2,288,444,000	272,368,000	797,946,000	77,600,000
Cash paid					1,200,000,000
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value					12,200,000
Business Acquisition, Cost of Acquired Entity, Equity Interests Issued and Issuable					5,400,000
Net Tangible Assets Acquired (Liabilities Assumed)	$ (37,417,000)	$ (34,332,000)	$ 50,526,000