Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option-Changs in Fair Value (Details)

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FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option-Changs in Fair Value (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Loans held for sale        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Net gains (losses) from fair value changes $ 4,551 $ 8,870 $ 13,616 $ 13,519
Consumer loans        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Net gains (losses) from fair value changes $ 1,493 $ 0 $ 1,430 $ 0