BUSINESS COMBINATIONS (Details Textual)			1 Months Ended	9 Months Ended
	Mar. 11, 2016 USD ($) shares	Jun. 12, 2015 USD ($)	May 22, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Goodwill, excess of the merger consideration over fair value of net assets				$ 122,545,000	$ 87,701,000	$ 90,082,000
Description of Merger Agreement	Under the terms of the merger, JAXBs common shareholders received 0.5861 shares of Ameris common stock or $16.50 in cash for each share of JAXB common stock or nonvoting common stock they previously held, subject to the total consideration being allocated 75% stock and 25% cash.
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 72,455,000	$ 0
Merchants and Southern Banks of Florida [Member]
Number of banking locations			13
Goodwill, excess of the merger consideration over fair value of net assets			$ 0
Fair value of loans acquired			191,500,000
Net of loans acquired			$ 8,400,000
Estimated discount			4.21%
Accretable yield			$ 11,200,000
Payments to Acquire Businesses, Gross			50,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			14,614,000
Purchase price			50,000,000
Merchants and Southern Banks of Florida [Member] | As Recorded by Acquired Bank [Member]
Goodwill, excess of the merger consideration over fair value of net assets			14,634,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			$ 10,934,000
Bank Of America [Member]
Goodwill, excess of the merger consideration over fair value of net assets		$ 0
Fair value of loans acquired		4,000,000
Net of loans acquired		4,000,000
Accretable yield		$ 364,000
Number Of Bank Branches		18
Deposit Premium On Deposits Assumed		3.00%
Average Daily Deposits Period		15 years
Payments to Acquire Businesses, Gross		$ 20,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		10,348,000
Purchase price		20,002,000
Bank Of America [Member] | As Recorded by Acquired Bank [Member]
Goodwill, excess of the merger consideration over fair value of net assets		11,210,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		$ 10,653,000
Jacksonville Bancorp, Inc [Member]
Goodwill, excess of the merger consideration over fair value of net assets	$ 0
Issuance of common stock, shares | shares	2,549,469
Accretable yield	$ 28,300,000
Payments to Acquire Businesses, Gross	23,937,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	4,798,000
Purchase price	96,392,000
Discount on loans acquired	$ 13,900,000
Percentage of discount on loans acquired	3.33%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	$ 402,900,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	72,455,000
Jacksonville Bancorp, Inc [Member] | As Recorded by Acquired Bank [Member]
Goodwill, excess of the merger consideration over fair value of net assets	$ 32,498,000
Issuance of common stock, shares | shares	2,549,469
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	$ 4,767,000