CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 1,172,000	$ 251,949	$ (49,848)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and other amortization	52,559	48,861	69,203
Deferred tax (benefit) expense	(692,810)	312	590
Realized investment gains, net	(28,361)	(1,501)	(6,059)
Net investment impairment losses	0	144	328
Loss on repurchase of senior notes	507	837	0
Excess tax benefits related to share-based compensation	(2,117)	0	0
Change in certain assets and liabilities:
Accrued investment income	(9,706)	1,142	(4,417)
Prepaid reinsurance premium	47,457	(11,380)	(35,402)
Reinsurance recoverable on loss reserves	13,354	6,244	40,763
Reinsurance recoverable on paid losses	3,105	4,001	5,180
Premiums receivable	8,973	4,859	5,527
Deferred insurance policy acquisition costs	(3,001)	(2,519)	1,524
Profit commission receivable	64,525	(89,132)	(2,368)
Loss reserves	(503,405)	(664,594)	(995,442)
Premium deficiency reserve	(23,751)	(24,710)	(25,320)
Unearned premiums	76,559	48,935	15,639
Return premium accrual	(9,600)	22,200	(11,800)
Income taxes payable - current	2,518	(674)	598
Other, net	(16,770)	(251)	20,593
Net cash provided by (used in) operating activities	152,036	(405,277)	(970,711)
Purchases of investments:
Fixed maturities	(2,462,844)	(1,979,917)	(3,248,602)
Equity securities	(2,623)	(94)	(111)
Proceeds from sales of fixed maturities	1,796,153	1,147,624	1,054,985
Proceeds from maturity of fixed maturities	559,774	1,129,087	1,357,028
Net decrease in payables for securities	0	13	13
Net decrease (increase) in restricted cash	17,212	228	(17,440)
Additions to property and equipment	(4,630)	(4,707)	(820)
Net cash (used in) provided by investing activities	(96,958)	292,234	(854,947)
Cash flows from financing activities:
Net proceeds from convertible senior notes	0	0	484,625
Common stock shares issued	0	0	663,335
Repayment of long-term debt	(73,957)	(21,767)	(17,235)
Excess tax benefits related to share-based compensation	2,117	0	0
Net cash (used in) provided by financing activities	(71,840)	(21,767)	1,130,725
Net decrease in cash and cash equivalents	(16,762)	(134,810)	(694,933)
Cash and cash equivalents at beginning of year	197,882	332,692	1,027,625
Cash and cash equivalents at end of year	$ 181,120	$ 197,882	$ 332,692