Note 1 - Summary of Significant Accounting Policies (Detail) - Goodwill Per Acquisition (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Carrying Amount	$ 1,363,057
Fair Value	1,449,670
Allocated Goodwill	316,340	316,340
Commercial Lending Unit [Member]
Carrying Amount	797,702
Fair Value	363,601
Retail Banking Unit [Member]
Carrying Amount	361,589
Fair Value	675,580
Fair Value in Excess of Carrying Amount	86.80%
Allocated Goodwill	235,195
East Coast Operations [Member]
Carrying Amount	203,766
Fair Value	410,489
Fair Value in Excess of Carrying Amount	101.50%
Allocated Goodwill	$ 81,145

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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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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+ Details