MERGERS AND ACQUISITIONS - Balance Sheet - ECB Bancorp (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended				0 Months Ended						0 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013		Apr. 02, 2013 East Carolina Bancorp [Member]	Apr. 02, 2013 East Carolina Bancorp [Member] Scenario, Previously Reported [Member]	Apr. 02, 2013 East Carolina Bancorp [Member] Initial Fair Value Adjustments [Member]		Apr. 02, 2013 East Carolina Bancorp [Member] Measurement Period Adjustment [Member]		Feb. 15, 2014 Minimum [Member]	Feb. 16, 2014 Maximum [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	$ 59,837		$ 59,837		$ 29,081	[1]	$ 24,008	$ 24,008	$ 0		$ 0
Investment securities available for sale	694,993		694,993		404,388	[1]	289,359	289,058	301	[2]	0
Loans held for sale							13,456	3,857	9,790	[3]	(191)	[4]
Loans, net	2,819,785		2,819,785		1,385,790		453,054	483,474	(30,420)	[5]	0
Federal Home Loan Bank stock, at cost							3,150	3,150	0		0
Premises and equipment							24,591	25,633	(1,177)	[6]	135	[4]
Bank-owned life insurance							12,249	12,249	0		0
Foreclosed assets	11,078		11,078		10,518	[1]	6,068	7,090	(717)	[7]	(305)	[4]
Deferred tax asset, net	72,919		72,919		54,867	[1]	16,608	6,986	9,082	[8]	540	[4]
Other intangible assets							4,307	0	4,307	[9]	0
Accrued interest receivable and other assets	77,147		77,147		38,118	[1]	8,836	10,423	(665)	[10]	(922)	[4]
Total assets	4,178,595		4,178,595		2,122,713	[1]	855,686	865,928	(9,499)		(743)
Deposits	3,184,939		3,184,939		1,672,231		736,114	731,926	4,188	[11]	0
Short-term borrowings	216,500		216,500		126,500	[1]	34,284	34,284	0		0
Long-term debt	210,154		210,154		72,921	[1]	16,460	16,000	460	[12]	0
Accrued interest payable and other liabilities	24,672		24,672		13,002	[1]	3,131	2,867	148	[13]	116	[4]
Total liabilities	3,636,265		3,636,265		1,884,654	[1]	789,989	785,077	4,796		116
Net assets acquired							65,697	80,851	(14,295)		(859)
Preferred stock	28,405		28,405		0	[1]	17,553	17,660	(107)	[14]	0
Common stock warrants	717		717		0	[1]	133	878	(745)	[14]	0
Total other equity interests							17,686	18,538	(852)		0
Gain on acquisition	0	0	0	7,382			7,382
Purchase price							$ 40,629
Preferred stock, dividend rate (as a percentage)													5.00%	9.00%

[1] Derived from the audited consolidated financial statements of Piedmont Community Bank Holdings, Inc., which was the Company's accounting predecessor.

[2] Adjustment reflects opening fair value of securities portfolio, which was established as the new book basis of the portfolio.

[3] Adjustment reflect the reclassification of the fair value of certain loans identified by management as being held for sale at acquisition.

[4] Adjustments reflect changes to acquisition date fair values of certain assets based on additional information received post-acquisition within the measurement period. Measurement period adjustments included tax-effected adjustments to reduce the fair value of a non-marketable investment, to dispose of other assets with no value at the merger, to reduce the fair value of certain distressed loans held for sale, to reduce the fair value of certain other real estate owned, to recognize a liability for outstanding ECB employee credit card balances, and to increase the fair value of a bank-owned office.

[5] Adjustment reflects the elimination of ECB's historical allowance for loan losses and the recording of a fair value discount on the loan portfolio. The fair value discount was calculated by forecasting cash flows over the expected remaining life of each loan and discounting those cash flows to present value using current market rates for similar loans. Forecasted cash flows include an estimate of lifetime credit losses on the loan portfolio.

[6] Adjustment reflects fair value adjustments on certain acquired branch offices as well as certain software and computer equipment.

[7] Adjustment reflects the write down of certain foreclosed assets based on current estimates of property values given current market conditions and additional discounts based on the Company's planned disposition strategy.

[8] Adjustment reflects the tax impact of acquisition accounting fair value adjustments.

[9] Adjustment reflects the fair value of the acquired core deposit intangible.

[10] Adjustment reflects the impact of fair value adjustments on other assets, which include the write down of certain unusable prepaid expenses and the elimination of accrued interest on purchased credit-impaired loans.

[11] Adjustment reflects the fair value premium on time deposits, which was calculated by discounting future contractual interest payments at a current market interest rate.

[12] Adjustment reflects the fair value premium on long-term FHLB advances, which was calculated by discounting future contractual interest payments at a current market interest rate. This fair value premium is also consistent with the prepayment penalty the FHLB would charge to terminate the advance.

[13] Adjustment reflects the impact of fair value adjustments on other liabilities, which primarily includes the accrual of a preferred stock dividend at acquisition.

[14] Amount reflects the adjustment to record other equity interests at fair value. The fair value of preferred stock issued to Treasury was estimated by discounting future contractual dividend payments at a current market interest rate for preferred stocks of issuers with similar risk. The assumed liquidation date of the preferred stock was February 15, 2014, which was the date the dividend reset from 5 to 9 percent. The fair value of the common stock warrant issued to Treasury was estimated using a Black-Scholes option pricing model assuming a warrant life through the dividend reset date.