Note 11 - Goodwill and Intangible Assets (Detail) - Summary of changes in goodwill (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill, gross		$ 269,118
Accumulated goodwill impairment		(98,596)
Goodwill, net	170,522	170,522	170,522
Goodwill, gross		269,118
Accumulated goodwill impairment		$ (98,596)

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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