Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net income (loss)	$ 99,785	$ (40,053)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Gain on bargain purchase	(74,408)	0
Depreciation and amortization, net of accretion	16,320	9,824
(Increase) decrease in cash surrender value of BOLI	230	(913)
Net realized investment (gains) losses	(19,682)	8,688
Share-based compensation	2,184	2,032
Deferred income tax expense (benefit)	(1,813)	(12,827)
Policy acquisition costs, net of amortization (net deferral)	(4,906)	3,317
Equity in (earnings) loss of unconsolidated subsidiaries	(18,715)	26,917
Distributed earnings from unconsolidated subsidiaries	13,355	27,437
Other	198	2,755
Other changes in assets and liabilities:
Premiums receivable	23,711	9,540
Reinsurance related assets and liabilities	(9,213)	(22,190)
Other assets	10,827	(22,740)
Reserve for losses and loss adjustment expenses	22,207	42,655
Unearned premiums	(41,294)	(20,585)
Other liabilities	12,229	(11,384)
Net cash provided (used) by operating activities	31,015	2,473
Purchases of:
Fixed maturities, available-for-sale	(765,518)	(371,876)
Equity investments	(119,661)	(32,544)
Other investments	(48,521)	(21,238)
Investment in unconsolidated subsidiaries	(9,476)	(24,135)
Proceeds from sales or maturities of:
Fixed maturities, available-for-sale	562,789	433,090
Equity investments	384,989	171,155
Other investments	23,207	19,868
Net sales or (purchases) of fixed maturities, trading	2,123	1,588
Return of invested capital from unconsolidated subsidiaries	37,420	21,742
Net sales or maturities (purchases) of short-term investments	46,987	(138,116)
Unsettled security transactions, net change	39,416	28,808
Purchases of capital assets	(3,108)	(4,483)
Purchases of intangible assets	0	(1,198)
Cash paid for acquisitions, net of cash acquired	(221,576)	0
Other	0	(1,142)
Net cash provided (used) by investing activities	(70,929)	81,519
Financing Activities
Borrowings under Revolving Credit Agreement	15,000	0
Repayments of mortgage loans	(16,368)	(751)
Dividends to shareholders	(5,376)	(33,292)
Capital contribution received from (return of capital to) external segregated portfolio cell participants	(8,064)	(146)
Other	(264)	(904)
Net cash provided (used) by financing activities	(15,072)	(35,093)
Increase (decrease) in cash and cash equivalents	(54,986)	48,899
Cash and cash equivalents at beginning of period	215,782	175,369
Cash and cash equivalents at end of period	160,796	224,268
Significant Non-Cash Transactions
Dividends declared and not yet paid	2,700	2,693
Operating ROU assets obtained in exchange for operating lease liabilities	5,275	0
Fair value of Contribution Certificates issued in NORCAL acquisition	174,999	0
Fair value of contingent consideration in NORCAL acquisition	$ 24,000	$ 0