Note 3 - Acquisitions (Details) - Acquisition Details (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Current assets	$ 25,723	$ 30,427	$ 1,819
Long term assets	2,733	3,164	1,277
Current liabilities	(35,308)	(21,169)	(4,235)
Long-term liabilities	(18,155)	(1,080)	(1,779)
Non-controlling interests	(3,629)	(1,153)
Business acquisition total	(72,167)	9,436	(10,156)
Note consideration	(776)	(655)
Cash consideration, net of cash acquired	(37,735)	(19,153)	(22,975)
Acquisition date fair value of contingent consideration	(9,556)	(1,944)	(3,482)
Total purchase consideration	(48,067)	(21,752)	(26,457)
Gain on revaluation of previously held equity investment	(820)
Acquired intangible assets	52,244	7,420	16,586
Goodwill	427,178	402,645	395,487
Noncontrolling Interest Recognized On Business Acquisitions [Member]
Business Acquisition [Line Items]
Redeemable non-controlling interest	(43,531)	(753)	(7,238)
Acquisitions 2013 [Member]
Business Acquisition [Line Items]
Goodwill	68,810
Acquisitions 2012 [Member]
Business Acquisition [Line Items]
Goodwill		4,896
Acquisitions 2011 [Member]
Business Acquisition [Line Items]
Goodwill			$ 20,027

Business combination gain on revaluation of previously held equity investment.

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- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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-Glossary Investing Activities

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