ACQUISITIONS - Schedule of Assets Acquired and Liabilities Assumed (Details) - 1347 Property Insurance Holdings, Inc $ in Thousands	Dec. 02, 2019 USD ($)
Business Acquisition [Line Items]
Debt securities, available-for-sale	$ 56,929
Cash and cash equivalents	35,968
Prepaid reinsurance premium	25,279
Premiums receivable	2,977
Reinsurance recoverable	7,603
Deferred acquisition costs and value of business acquired, net	8,721
Other assets	3,507
Total assets acquired	140,984
Loss and adjustment expense reserves	16,660
Unearned premiums	50,513
Reinsurance payable	24,071
Income taxes, net	1,778
Deferred revenue	1,515
Other liabilities	7,487
Total liabilities assumed	102,024
Net specifically identifiable assets acquired	38,960
Goodwill	10,997
Net assets acquired	$ 49,957