COMMITMENTS AND CONTINGENCIES (Commitments Without Recorded Liability) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of Properties Subject to Non-cancelable Operating Leases	66
Mortgage loan applications, day interest rate is locked	45 days
Minimum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Mortgage loan applications, day interest rate is locked	30 days
Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Mortgage loan applications, day interest rate is locked	60 days
Commitments to extend credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	$ 1,275,871		$ 1,166,165
Standby letters of credit and financial guarantees [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	10,584		9,934
Commitments to originate loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	41,880		20,988
Commitments to originate loans held for sale [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	62,093		29,851
Commitmenst to sell loans secured by one- to four residential properties [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	21,040		8,714
Counterparty default losses on forward contracts	0	0
Commitments to sell securities related to mortgage banking activities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract or Notional Amount	43,572		25,000
Counterparty default losses on forward contracts	$ 0	$ 0