MONY CLOSED BLOCK OF BUSINESS - Schedule of Closed Block Revenues and Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues
Premiums and other income	$ 37,444	$ 39,612
Net investment income	51,128	50,543
Net investment gains	(454)	(237)
Total revenues	88,118	89,918
Benefits and other deductions
Benefits and settlement expenses	78,666	79,952
Other operating expenses	359	(319)
Total benefits and other deductions	79,025	79,633
Net revenues before income taxes	9,093	10,285
Income tax expense	1,910	2,160
Net revenues	$ 7,183	$ 8,125