Annual report pursuant to Section 13 and 15(d)

BENEFIT PLANS - Defined Contribution Plans (Details)

v3.6.0.2
BENEFIT PLANS - Defined Contribution Plans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]      
Defined contribution plan $ 36,107 $ 31,896 $ 31,110
Shares in Huntington common stock (in shares) 11,748,379 13,076,164  
Market value of Huntington common stock $ 162,245 $ 144,622  
Dividends received on shares of Huntington stock $ 3,692 $ 3,076