Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net cash (used in) provided by operating activities	[1]	$ (136,231)	$ 68,123
Securities available-for-sale:
Purchases – fixed maturity securities		(368,975)	(260,853)
Sales – fixed maturity securities		9,432	91,537
Maturities and calls – fixed maturity securities		92,395	64,905
Purchases – equity securities		(9,993)	(3,977)
Sales – equity securities		3,295	263
Bank loan participations:
Purchases		(24,107)	(46,327)
Sales		103,933	27,920
Maturities		17,238	25,565
Other invested assets:
Purchases		(438)	0
Return of capital		251	1,266
Redemptions		13,612	3,000
Short-term investments, net		60,660	57,503
Securities receivable or payable, net		19,098	1,925
Purchases of property and equipment		(211)	(197)
Net cash used in investing activities		(83,810)	(37,470)
Financing activities
Senior debt issuances		119,000	0
Senior debt repayments		(60,000)	(20,000)
Dividends paid		(18,645)	(18,342)
Issuance of common shares under equity incentive plans		838	6,493
Common share repurchases		(2,063)	(2,136)
Net cash provided by (used in) financing activities		39,130	(33,985)
Change in cash, cash equivalents, and restricted cash equivalents		(180,911)	(3,332)
Cash, cash equivalents, and restricted cash equivalents at beginning of period		1,406,076	172,457
Cash, cash equivalents, and restricted cash equivalents at end of period		1,225,165	169,125
Supplemental information
Interest paid		6,526	$ 6,499
Restricted cash returned to a former insured		178,300
Cash provided by operating activities excluding reduction in collateral funds		$ 42,100

[1] Cash used in operating activities for the six months ended June 30, 2020 primarily reflects $178.3 million of restricted cash equivalents returned to a former insured, per the terms of a collateral trust (see Amounts Recoverable from an Indemnifying Party in Liquidity and Capital Resources). Excluding the reduction in the collateral funds, cash provided by operating activities was $42.1 million for the six months ended June 30, 2020.