BUSINESS COMBINATION- Business Combination (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Assets [Abstract]
Fair Value Of Assets Acquired	$ 540,339us-gaap_FairValueOfAssetsAcquired
Liabilities [Abstract]
Business Combination Bargain Purchase Gain Recognized Amount	13,443	0
Deposits [Member]
Liabilities [Abstract]
Liabilities Assumed1	523,517	0
Other Liabilities [Member]
Liabilities [Abstract]
Liabilities Assumed1	3,379
Core Deposits [Member]
Assets [Abstract]
Fair Value Of Assets Acquired	5,820	0
Property Plant And Equipment [Member]
Assets [Abstract]
Fair Value Of Assets Acquired	5,450	0
Cash [Member]
Assets [Abstract]
Fair Value Of Assets Acquired	217,659
Loans [Member]
Assets [Abstract]
Business Combination Acquired Receivables Fair Value	311,410
Fair Value Of Assets Acquired	$ 311,410	$ 0

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For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

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-Publisher FASB

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- Definition

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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- Definition

The fair value of assets acquired in noncash investing or financing activities.

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The fair value of liabilities assumed in noncash investing or financing activities.

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