Consolidated Statements Of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Interest Income
Residential loans	$ 67,016		$ 82,169		$ 81,116
Commercial loans	43,420		26,759		8,835
Real estate securities	115,563		122,386		127,179
Cash and cash equivalents	157		70		49
Total interest income	226,156		231,384		217,179
Interest Expense
Short-term debt	(17,436)		(9,390)		(1,031)
Asset-backed securities issued	(39,716)		(101,732)		(88,433)
Long-term debt	(23,819)		(9,583)		(9,514)
Total interest expense	(80,971)		(120,705)		(98,978)
Net Interest Income	145,185		110,679		118,201
Provision for loan losses	(4,737)		(3,648)		(16,151)
Net Interest Income After Provision	140,448		107,031		102,050
Noninterest Income
Mortgage banking activities, net	100,676		36,319
Mortgage servicing rights income, net	20,309		(1,391)
Other market valuation adjustments, net	(5,709)	[1]	1,539	[1]	(40,017)	[1]
Realized gains, net	25,259		54,921		10,946
Total noninterest income	140,535		91,388		(29,071)
Operating expenses	(84,789)		(65,359)		(47,741)
Other expense	(12,000)
Net income before provision for income taxes	184,194		133,060		25,238
Provision for income taxes	(10,948)		(1,291)		(42)
Net income	173,246		131,769		25,196
Less: Net loss attributable to noncontrolling interest					(1,147)
Net Income Attributable to Redwood Trust, Inc.	$ 173,246		$ 131,769		$ 26,343
Basic earnings per common share	$ 2.05		$ 1.61		$ 0.31
Diluted earnings per common share	$ 1.94		$ 1.59		$ 0.31
Regular dividends declared per common share	$ 1.12		$ 1.00		$ 1.00
Basic weighted average shares outstanding	81,985,897		79,529,950		78,229,510
Diluted weighted average shares outstanding	93,694,924		80,673,682		78,299,510

[1] For the year ended December 31, 2013, other-than-temporary impairments were $4,532, of which $1,833 were recognized through the Income Statement, and $2,699 were recognized in Accumulated Other Comprehensive Income (Loss). For the year ended December 31, 2012, other-than-temporary impairments were $3,536, of which $2,509 were recognized through the Income Statement, and $1,027 were recognized in Accumulated Other Comprehensive Income (Loss). For the year ended December 31, 2011, other-than-temporary impairments were $15,106, of which $9,472 were recognized through the Income Statement, and $5,634 were recognized in Accumulated Other Comprehensive Income (Loss).