BUSINESS COMBINATIONS (Details Textual)			1 Months Ended
	Mar. 11, 2016 USD ($)	Jun. 12, 2015 USD ($)	May 22, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Goodwill, excess of the merger consideration over fair value of net assets				$ 125,532,000	$ 90,082,000	$ 63,547,000
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. As a result, the Company issued 2,549,469 common shares at a fair value of $72.5 million and paid $23.9 million in cash to former shareholders of JAXB.
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
Accretable yield	27,000,000
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	$ 15,200,000
Percentage of discount on loans acquired	3.64%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	$ 401,600,000
Jacksonville Bancorp, Inc [Member] | As Recorded by Acquired Bank [Member]
Goodwill, excess of the merger consideration over fair value of net assets	35,485,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	$ 4,679,000