LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES Change in Outstanding Loss and Loss Adjustment Expense Reserve For Health Claims (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Case reserves			$ 198,616,000	$ 217,834,000
IBNR			257,053,000	252,754,000
Total	$ 455,669,000	$ 507,931,000	455,669,000	470,588,000	$ 507,931,000	$ 482,662,000
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross balance at January 1	470,588,000	482,662,000
Less: Losses recoverable				(27,531,000)		(43,705,000)
Net balance at January 1	443,057,000	438,957,000
Incurred losses related to:
Current year	71,525,000	87,812,000
Prior years	4,172,000	35,053,000
Total incurred	75,697,000	122,865,000
Paid losses related to:
Current year	(10,649,000)	(13,277,000)
Prior years	(73,296,000)	(87,375,000)
Total paid	(83,945,000)	(100,652,000)
Foreign currency revaluation	(2,235,000)	565,000
Net balance at March 31	432,574,000	461,735,000
Add: Losses recoverable			23,095,000	27,531,000	46,196,000
Gross balance at March 31	455,669,000	507,931,000
Prior years adjustment increase (decrease)	4,172,000	35,053,000
Net loss reserve on prior contracts increase (decrease)	(3,900,000)	(25,700,000)
Health
Liability for Claims and Claims Adjustment Expense [Line Items]
Total	16,264,000	26,329,000	16,264,000	18,063,000	26,329,000	24,502,000
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross balance at January 1	18,063,000	24,502,000
Less: Losses recoverable				$ 0		$ 0
Net balance at January 1	18,063,000	24,502,000
Incurred losses related to:
Current year	8,033,000	11,142,000
Prior years	851,000	2,159,000
Total incurred	8,884,000	13,301,000
Paid losses related to:
Current year	(1,719,000)	(1,502,000)
Prior years	(8,964,000)	(9,972,000)
Total paid	(10,683,000)	(11,474,000)
Foreign currency revaluation	0	0
Net balance at March 31	16,264,000	26,329,000
Add: Losses recoverable			$ 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000		$ 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Gross balance at March 31	16,264,000	26,329,000
Prior years adjustment increase (decrease)	$ 851,000	$ 2,159,000