RETROCESSION (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Ceded Credit Risk [Line Items]
Ceded premiums earned	$ 500,000	$ 21,700,000	$ 1,500,000	$ 43,800,000
Net loss and loss adjustment expenses incurred	89,194,000	78,476,000	164,891,000	201,341,000
Loss and loss expenses recovered and recoverable	200,000	$ 15,900,000	3,700,000	$ 42,300,000
Loss and loss adjustment expenses recoverable					$ 27,531,000	$ 43,705,000
Provision for uncollectible losses recoverable	89,000		89,000		0
AM Best, A- Rating
Ceded Credit Risk [Line Items]
Loss and loss adjustment expenses recoverable	4,500,000		4,500,000		6,400,000
Unsecured | Unrated
Ceded Credit Risk [Line Items]
Loss and loss adjustment expenses recoverable	15,800,000		15,800,000		21,200,000
Secured | Unrated
Ceded Credit Risk [Line Items]
Loss and loss adjustment expenses recoverable	$ 15,400,000		$ 15,400,000		$ 20,000,000.0