CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Premiums written:
Direct	$ 999,943	$ 994,910	$ 1,049,549
Assumed	1,653	2,074	2,425
Ceded (note 11)	(119,634)	(73,503)	(34,142)
Net premiums written	881,962	923,481	1,017,832
(Increase) decrease in unearned premiums	(37,591)	19,570	15,338
Net premiums earned (note 11)	844,371	943,051	1,033,170
Investment income, net of expenses (note 6)	87,647	80,739	121,640
Net realized investment gains (losses) (note 6):
Total other-than-temporary impairment losses	(144)	(328)	(2,310)
Portion of losses recognized in other comprehensive income (loss), before taxes (note 12)	0	0	0
Net impairment losses recognized in earnings	(144)	(328)	(2,310)
Other realized investment gains	1,501	6,059	197,719
Net realized gains (losses) on securities	1,357	5,731	195,409
Other revenue	8,422	9,914	28,145
Total revenues	941,797	1,039,435	1,378,364
Losses and expenses:
Losses incurred, net (notes 9 and 11)	496,077	838,726	2,067,253
Change in premium deficiency reserve (note 10)	(24,710)	(25,320)	(61,036)
Amortization of deferred policy acquisition costs	7,618	10,641	7,452
Other underwriting and operating expenses, net (note 11)	138,441	181,877	193,995
Interest expense (note 8)	69,648	79,663	99,344
Total losses and expenses	687,074	1,085,587	2,307,008
Income (loss) before tax	254,723	(46,152)	(928,644)
Provision for (benefit from) income taxes (note 14)	2,774	3,696	(1,565)
Net income (loss)	$ 251,949	$ (49,848)	$ (927,079)
Income (loss) per share (note 3):
Basic (in dollars per share)	$ 0.74	$ (0.16)	$ (4.59)
Diluted (in dollars per share)	$ 0.64	$ (0.16)	$ (4.59)
Weighted average common shares outstanding - basic (note 3) (in shares)	338,523	311,754	201,892
Weighted average common shares outstanding - diluted (note 3) (in shares)	413,547	311,754	201,892
Dividends per share (in dollars per share)	$ 0	$ 0	$ 0