Schedule II - Balance Sheets (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2019	Jul. 24, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 17,284		$ 22,279
Other assets	29,537		57,653
Total assets	2,877,234		2,577,106
Liabilities
Notes payable	164,693		182,355
Other liabilities	56,438		73,474
Total liabilities	2,334,203		2,187,276
Stockholders’ equity
Preferred stock, $0.01 par value; 50,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.01 par value; 200,000,000 shares authorized; 43,071,186 and 38,864,289 shares issued, 43,058,266 and 38,851,369 shares outstanding in 2019 and 2018, respectively	431		389
Paid-in capital	661,761		607,260
Accumulated other comprehensive income (loss)	37,453		(22,315)	$ 19,297	$ 29,482
Retained deficit	(156,414)		(195,304)
Treasury shares – at cost (12,920 shares)	(200)		(200)
Total stockholders’ equity	543,031		389,830	$ 375,983	$ 380,655
Total liabilities and stockholders’ equity	$ 2,877,234		$ 2,577,106
Preferred stock, par value	$ 0.01		$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000	50,000,000
Preferred stock, shares issued	0		0
Preferred stock, shares outstanding	0		0
Common stock, par value	$ 0.01		$ 0.01
Common stock, shares authorized	200,000,000	200,000,000	200,000,000
Common stock, shares issued	43,071,186		38,864,289
Common stock, shares outstanding	43,058,266		38,851,369
Treasury shares, shares	12,920		12,920
Parent Company | Reportable Legal Entities
Assets
Investment in subsidiaries	$ 702,977		$ 572,435
Cash and cash equivalents	773		522
Total cash and investments	703,750		572,957
Receivables from affiliates	6,580		12,462
Other assets	747		4,591
Total assets	711,077		590,010
Liabilities
Payables to affiliates	1,263		9,540
Notes payable	164,693		182,355
Loan payable to affiliates			3,173
Other liabilities	2,090		5,112
Total liabilities	168,046		200,180
Stockholders’ equity
Preferred stock, $0.01 par value; 50,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.01 par value; 200,000,000 shares authorized; 43,071,186 and 38,864,289 shares issued, 43,058,266 and 38,851,369 shares outstanding in 2019 and 2018, respectively	431		389
Paid-in capital	661,761		607,260
Accumulated other comprehensive income (loss)	37,453		(22,315)
Retained deficit	(156,414)		(195,304)
Treasury shares – at cost (12,920 shares)	(200)		(200)
Total stockholders’ equity	543,031		389,830
Total liabilities and stockholders’ equity	$ 711,077		$ 590,010
Preferred stock, par value	$ 0.01		$ 0.01
Preferred stock, shares authorized	50,000,000		50,000,000
Preferred stock, shares issued	0		0
Preferred stock, shares outstanding	0		0
Common stock, par value	$ 0.01		$ 0.01
Common stock, shares authorized	200,000,000		200,000,000
Common stock, shares issued	43,071,186		38,864,289
Common stock, shares outstanding	43,058,266		38,851,369
Treasury shares, shares	12,920		12,920