Mezzanine and Shareholders' Equity - Dividends and Treasury Stock (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 18, 2018
Class of Stock [Line Items]
Stock repurchased			$ 1,652,286
Treasury stock, common, shares (in shares)	17,458,810	1,850,603
Allied Pacific of California Brokerage Account
Class of Stock [Line Items]
Treasury stock	$ 7,300,000
Network Medical Management, Inc 'NMM'
Class of Stock [Line Items]
Payments of ordinary dividends common stock	0	$ 13,800,000	0
APC Common Stock
Class of Stock [Line Items]
Payments of ordinary dividends common stock	60,000,000	2,000,000	8,750,000
NMM
Class of Stock [Line Items]
Shares authorized to repurchased (in shares)				168,493
CDSC
Class of Stock [Line Items]
Payments of ordinary dividends common stock	$ 2,600,000	$ 2,000,000	$ 1,700,000
APC
Class of Stock [Line Items]
Treasury stock, common, shares (in shares)	17,290,317	1,682,110	1,682,110
Allied Pacific of California
Class of Stock [Line Items]
Shares authorized to repurchased (in shares)				1,662,571