MORTGAGE LOANS - Impaired Loans (Details) - Commercial mortgage loans - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Recorded Investment
With no related allowance recorded, recorded investment	$ 83	$ 0
With an allowance recorded, recorded investment	9,445	5,684
Unpaid Principal Balance
With no related allowance recorded, unpaid principal balance	83	0
With an allowance recorded, unpaid principal balance	9,305	5,309
Related Allowance
With an allowance recorded, related allowance	2,481	1,296
Average Recorded Investment
With no related allowance recorded, average recorded investment	83	0
With an allowance recorded, average recorded investment	3,148	1,895
Interest Income Recognized
With no related allowance recorded, interest income recognized	0	0
With an allowance recorded, interest income recognized	184	267
Cash Basis Interest Income
With no related allowance recorded, cash basis interest income	0	0
With an allowance recorded, cash basis interest income	$ 217	$ 293

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-Publisher FASB
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