Available for Sale Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended																																																																				3 Months Ended						57 Months Ended		3 Months Ended		57 Months Ended						3 Months Ended		57 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012		Sep. 30, 2013 Fixed Maturity Securities [Member]		Sep. 30, 2013 U.S. Treasury securities [Member]		Dec. 31, 2012 U.S. Treasury securities [Member]		Sep. 30, 2012 U.S. Treasury securities [Member]		Sep. 30, 2013 Municipal and other tax-exempt securities [Member]		Dec. 31, 2012 Municipal and other tax-exempt securities [Member]		Sep. 30, 2012 Municipal and other tax-exempt securities [Member]		Sep. 30, 2013 Commercial mortgage-backed securities [Member]		Dec. 31, 2012 Commercial mortgage-backed securities [Member]		Sep. 30, 2012 Commercial mortgage-backed securities [Member]		Sep. 30, 2013 Other debt securities [Member]		Dec. 31, 2012 Other debt securities [Member]		Sep. 30, 2012 Other debt securities [Member]		Sep. 30, 2013 Residential Mortgage Backed Securities [Member]		Dec. 31, 2012 Residential Mortgage Backed Securities [Member]		Sep. 30, 2012 Residential Mortgage Backed Securities [Member]		Sep. 30, 2013 U.S. agency residential mortgage-backed securities [Member]		Dec. 31, 2012 U.S. agency residential mortgage-backed securities [Member]		Sep. 30, 2012 U.S. agency residential mortgage-backed securities [Member]		Sep. 30, 2013 U.S. agency residential mortgage-backed securities [Member] Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]		Dec. 31, 2012 U.S. agency residential mortgage-backed securities [Member] Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]		Sep. 30, 2012 U.S. agency residential mortgage-backed securities [Member] Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]		Sep. 30, 2013 U.S. agency residential mortgage-backed securities [Member] Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]		Dec. 31, 2012 U.S. agency residential mortgage-backed securities [Member] Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]		Sep. 30, 2012 U.S. agency residential mortgage-backed securities [Member] Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]		Sep. 30, 2013 U.S. agency residential mortgage-backed securities [Member] Government National Mortgage Association Certificates and Obligations (GNMA) [Member]		Dec. 31, 2012 U.S. agency residential mortgage-backed securities [Member] Government National Mortgage Association Certificates and Obligations (GNMA) [Member]		Sep. 30, 2012 U.S. agency residential mortgage-backed securities [Member] Government National Mortgage Association Certificates and Obligations (GNMA) [Member]		Sep. 30, 2013 U.S. agency residential mortgage-backed securities [Member] Other [Member]		Dec. 31, 2012 U.S. agency residential mortgage-backed securities [Member] Other [Member]		Sep. 30, 2012 U.S. agency residential mortgage-backed securities [Member] Other [Member]		Sep. 30, 2013 Privately issued residential mortgage-backed securities [Member]		Dec. 31, 2012 Privately issued residential mortgage-backed securities [Member]		Sep. 30, 2012 Privately issued residential mortgage-backed securities [Member]		Sep. 30, 2013 Privately issued residential mortgage-backed securities [Member]		Sep. 30, 2013 Privately issued residential mortgage-backed securities [Member] Alt-A [Member]		Sep. 30, 2013 Privately issued residential mortgage-backed securities [Member] Alt-A [Member]		Dec. 31, 2012 Privately issued residential mortgage-backed securities [Member] Alt-A [Member]		Sep. 30, 2012 Privately issued residential mortgage-backed securities [Member] Alt-A [Member]		Sep. 30, 2013 Privately issued residential mortgage-backed securities [Member] Jumbo-A Loans [Member]		Sep. 30, 2013 Privately issued residential mortgage-backed securities [Member] Jumbo-A Loans [Member]		Dec. 31, 2012 Privately issued residential mortgage-backed securities [Member] Jumbo-A Loans [Member]		Sep. 30, 2012 Privately issued residential mortgage-backed securities [Member] Jumbo-A Loans [Member]		Sep. 30, 2013 Perpetual Preferred, Equity Securities and Mutual Funds [Member]	Sep. 30, 2013 Perpetual preferred stock [Member]		Dec. 31, 2012 Perpetual preferred stock [Member]		Sep. 30, 2012 Perpetual preferred stock [Member]		Sep. 30, 2013 Equity securities and mutual funds [Member]		Dec. 31, 2012 Equity securities and mutual funds [Member]		Sep. 30, 2012 Equity securities and mutual funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 10,365,478		$ 11,224,979		$ 10,365,478		$ 11,224,979		$ 11,032,634		$ 2,115,964		$ 1,052		$ 1,000		$ 1,000		$ 93,897		$ 84,892		$ 86,326		$ 1,985,924		$ 890,746		$ 336,130		$ 35,091		$ 35,680		$ 35,710		$ 8,170,995		$ 9,973,552		$ 10,718,234		$ 7,943,449		$ 9,650,650		$ 10,381,244		$ 4,513,161		$ 5,308,463		$ 5,740,232		$ 2,412,948		$ 2,978,608		$ 3,322,692		$ 978,361		$ 1,215,554		$ 1,151,058		$ 38,979		$ 148,025		$ 167,262		$ 227,546		$ 322,902		$ 336,990		$ 227,546		$ 109,234		$ 109,234		$ 124,314		$ 128,090		$ 118,312		$ 118,312		$ 198,588		$ 208,900		$ 78,519	$ 22,171		$ 22,171		$ 22,170		$ 56,348		$ 24,593		$ 25,409
Available-for-sale Securities, Fair Value	10,372,903		11,506,434		10,372,903		11,506,434		11,287,221		2,078,149		1,052		1,002		1,002		95,440		87,142		87,969		1,946,295		895,075		339,095		35,362		36,389		36,456		8,212,287		10,214,984		10,986,543		7,981,387		9,889,821		10,654,821		4,544,505		5,453,549		5,900,174		2,412,116		3,045,564		3,400,215		984,065		1,237,041		1,181,134		40,701		153,667		173,298		230,900		325,163		331,722		230,900		109,592		109,592		123,174		123,583		121,308		121,308		201,989		208,139		82,467	23,680		25,072		25,288		58,787		27,557		30,081
Available-for-sale Securities, Gross Unrealized Gain	139,837	[1]	294,124	[1]	139,837	[1]	294,124	[1]	261,184	[1]			0	[1]	2	[1]	2	[1]	2,792	[1]	2,414	[1]	2,760	[1]	354	[1]	5,006	[1]	3,271	[1]	459	[1]	709	[1]	746	[1]	132,219	[1]	246,910	[1]	279,229	[1]	125,433	[1]	240,332	[1]	274,949	[1]	81,984	[1]	146,247	[1]	161,314	[1]	30,673	[1]	66,956	[1]	77,523	[1]	11,054	[1]	21,487	[1]	30,076	[1]	1,722	[1]	5,642	[1]	6,036	[1]	6,786	[1]	6,578	[1]	4,280	[1]	6,786	[1]	2,970	[1]	2,970	[1]	1,440	[1]	663	[1]	3,816	[1]	3,816	[1]	5,138	[1]	3,617	[1]		1,534	[1]	2,901	[1]	3,118	[1]	2,479	[1]	3,242	[1]	4,998	[1]
Available-for-sale Securities, Gross Unrealized Loss	129,118	[1]	2,308	[1]	129,118	[1]	2,308	[1]	2,414	[1]			0	[1]	0	[1]	0	[1]	1,249	[1]	164	[1]	152	[1]	39,983	[1]	677	[1]	306	[1]	188	[1]	0	[1]	0	[1]	87,633	[1]	1,295	[1]	1,524	[1]	87,495	[1]	1,161	[1]	1,372	[1]	50,640	[1]	1,161	[1]	1,372	[1]	31,505	[1]	0	[1]	0	[1]	5,350	[1]	0	[1]	0	[1]	0	[1]	0	[1]	0	[1]	138	[1]	134	[1]	152	[1]	138	[1]	0	[1]	0	[1]	0	[1]	0	[1]	138	[1]	138	[1]	134	[1]	152	[1]		25	[1]	0	[1]	0	[1]	40	[1]	278	[1]	326	[1]
Available-for-Sale Securities, Other Than Temporary Impairments	(3,294)	[2]	(10,361)	[2]	(3,294)	[2]	(10,361)	[2]	(4,183)	[2]			0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	(965)	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	(3,294)	[2]	(4,183)	[2]	(9,396)	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	(3,294)	[2]	(4,183)	[2]	(9,396)	[2]	(3,294)	[2]	(2,612)	[2]	(2,612)	[2]	(2,580)	[2]	(5,170)	[2]	(682)	[2]	(682)	[2]	(1,603)	[2]	(4,226)	[2]		0	[2]	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]
Available-for-sale Securities, Debt Maturities, Less than One Year, Amortized Cost Basis											2,431		1,052						1,379						0						0
Available-for-sale Securities, Debt Maturities, One to Five Years, Amortized Cost Basis											585,039		0						34,349						520,499						30,191
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Amortized Cost Basis											1,156,083		0						5,446						1,150,637						0
Available-for-sale Securities, Debt Maturities, Over Ten Years, Amortized Cost Basis											372,411		0						52,723						314,788						4,900
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Available-for-sale Securities, Debt Maturities, Less than One Year, Fair Value											2,456		1,052						1,404						0						0
Available-for-sale Securities, Debt Maturities, One to Five Years, Fair Value											580,860		0						35,542						514,668						30,650
Available-for-sale Securities, Debt Maturities, Six to Ten Years, Fair Value											1,127,625		0						5,689						1,121,936						0
Available-for-sale Securities, Debt Maturities, Over Ten Years, Fair Value											367,208		0						52,805						309,691						4,712
Available-for-sale Securities, Debt Maturities, Nominal Yield [Abstract]
Available-for-sale Securities, Debt Maturities, Less than One Year, Nominal Yield											0.00%		0.24%						0.00%	[3]					0.00%						0.00%
Available-for-sale Securities, Debt Maturities, One to Five Years, Nominal Yield											1.13%		0.00%						0.97%	[3]					1.11%						1.80%
Available-for-sale Securities, Debt Maturities, Six To Ten Years, Nominal Yield											1.36%		0.00%						0.51%	[3]					1.37%						0.00%
Available-for-sale Securities, Debt Maturities, Over Ten Years, Nominal Yield											1.54%		0.00%						2.62%	[3],[4]					1.36%						1.54%	[4]
Available-for-sale Securities, Debt Maturities, Nominal Yield	1.79%				1.79%						1.33%		0.24%						1.85%	[3]					1.30%						1.77%						1.92%	[5]																																																											0.70%
Available-for-sale Securities, Debt Maturities, Weighted Average Maturity											10.29	[6]	1.42	[6]					14.50	[6]					10.18	[6]					5.56	[6]
Available-for-sale Securities, Debt Maturities, Effective tax rate for nominal yield calculation																			39.00%
Available-for-sale Securities, Debt Maturities, Average Expected Life of Mortgage-backed Securities																																					3.5
Available-for-sale Securities, Debt Maturities, Number of days for interest rates to reset																			35 days
Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract]
Available-for-sale Securities, Proceeds	355,650		209,325		2,140,531		1,660,876
Available-for-sale Securities, Gross realized gains	3,164		7,967		18,948		40,133
Available-for-sale Securities, Gross realized losses	(2,686)		0		(9,862)		(7,354)
Available-for-sale Securities, Related federal and state income tax expense	184		3,099		3,533		12,751
Available-for-sale Securities, Pledged as Collateral [Abstract]
Available-for-sale Securities, Pledged As Collateral, Amortized cost	5,020,732		3,634,955		5,020,732		3,634,955		4,070,250
Available-for-sale Securities, Pledged As Collateral, Fair value	5,009,611		3,763,664		5,009,611		3,763,664		4,186,390
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	431		101		431		101		106				0						46	[7]	38		51	[8]	116		8		8		3		3		0		168		35		40		148		12		12		79		12		12		46		0		0		23		0		0								20	[7]	23	[9]	28	[8]	20	[7]	10	[7]	10	[7]	12	[9]	13	[8]	10	[7]	10	[7]	11	[9]	15	[8]		1		0		0		97		22		2
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, OTTI Portion, Number of Positions																			0		0		21																																																										10		10		12		13		9		9		10		14
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	6,265,895		541,746		6,265,895		541,746		448,144				0						20,274	[7]	6,150		13,492	[8]	1,803,008		275,065		42,445		4,712		4,899		0		4,431,397		161,828		483,258		4,404,735		161,828		483,258		2,328,213		161,828		483,258		1,402,010		0		0		674,512		0		0								26,662	[7]	0	[9]	0	[8]	26,662	[7]	11,336	[7]	11,336	[7]	0	[9]	0	[8]	15,326	[7]	15,326	[7]	0	[9]	0	[8]		4,975		0		0		1,529		202		2,551
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	80,166		255,093		80,166		255,093		159,428				0						19,575	[7]	26,108		27,485	[8]	0		0		0		0		0		0		60,591		131,159		227,608		0		0		0		0		0		0		0		0		0		0		0		0								60,591	[7]	131,159	[9]	227,608	[8]	60,591	[7]	48,849	[7]	48,849	[7]	87,907	[9]	105,862	[8]	11,742	[7]	11,742	[7]	43,252	[9]	121,746	[8]		0		0		0		0		2,161		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	6,346,061		796,839		6,346,061		796,839		607,572				0						39,849	[7]	32,258		40,977	[8]	1,803,008		275,065		42,445		4,712		4,899		0		4,491,988		292,987		710,866		4,404,735		161,828		483,258		2,328,213		161,828		483,258		1,402,010		0		0		674,512		0		0								87,253	[7]	131,159	[9]	227,608	[8]	87,253	[7]	60,185	[7]	60,185	[7]	87,907	[9]	105,862	[8]	27,068	[7]	27,068	[7]	43,252	[9]	121,746	[8]		4,975		0		0		1,529		2,363		2,551
Available-for-sale Securities, Continuous Unrealized Loss Position, Less Than Twelve Months, OTTI Portion, Fair Value																			0		0		12,431																																																										11,336		11,336		0		0		15,326		15,326		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, OTTI Portion, Fair Value																			0		0		0																																																										48,849		48,849		87,907		105,862		0		0		29,128		107,071
Available-for-sale Securities, Continuous Unrealized Loss Position, OTTI Portion, Fair Value																			0		0		12,431																																																										60,185		60,185		87,907		105,862		15,326		15,326		29,128		107,071
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	129,472		2,974		129,472		2,974		1,850				0						352	[7]	11		970	[8]	39,983		677		306		188		0		0		88,884		1,161		1,372		87,495		1,161		1,372		50,640		1,161		1,372		31,505		0		0		5,350		0		0								1,389	[7]	0	[9]	0	[8]	1,389	[7]	707	[7]	707	[7]	0	[9]	0	[8]	682	[7]	682	[7]	0	[9]	0	[8]		25		0		0		40		1		326
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	2,940		9,695		2,940		9,695		4,747				0						897	[7]	153		147	[8]	0		0		0		0		0		0		2,043		4,317		9,548		0		0		0		0		0		0		0		0		0		0		0		0								2,043	[7]	4,317	[9]	9,548	[8]	2,043	[7]	1,905	[7]	1,905	[7]	2,580	[9]	5,170	[8]	138	[7]	138	[7]	1,737	[9]	4,378	[8]		0		0		0		0		277		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	132,412		12,669		132,412		12,669		6,597				0						1,249	[7]	164		1,117	[8]	39,983		677		306		188		0		0		90,927		5,478		10,920		87,495		1,161		1,372		50,640		1,161		1,372		31,505		0		0		5,350		0		0								3,432	[7]	4,317	[9]	9,548	[8]	3,432	[7]	2,612	[7]	2,612	[7]	2,580	[9]	5,170	[8]	820	[7]	820	[7]	1,737	[9]	4,378	[8]		25		0		0		40		278		326
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses																			0		0		965																																																										707		707		0		0		682		682		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, OTTI Portion, Aggregate Losses																			0		0		0																																																										1,905		1,905		2,580		5,170		0		0		1,602		4,226
Available-for-sale Securities, Continuous Unrealized Loss Position, OTTI Portion, Aggregate Losses																			0		0		965																																																										2,612		2,612		2,580		5,170		682		682		1,602		4,226
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized In Earnings, Net Qualitative Disclosures, Lowest Current Credit Rating [Abstract]
Available-for-sale Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Amortized Cost	9,930,425	[10]			9,930,425	[10]							1,052	[10]					0	[10]					1,985,924	[10]					0	[10]					7,943,449	[10]					7,943,449	[10]					4,513,161	[10]					2,412,948	[10]					978,361	[10]					38,979	[10]					0	[10]					0	[10]	0	[10]	0	[10]					0	[10]	0	[10]						0	[10]					0	[10]
Available-for-sale Securities, Portfolio Concentration US Govt or GSE Securities Not Rated, Fair Value	9,928,734	[10]			9,928,734	[10]							1,052	[10]					0	[10]					1,946,295	[10]					0	[10]					7,981,387	[10]					7,981,387	[10]					4,544,505	[10]					2,412,116	[10]					984,065	[10]					40,701	[10]					0	[10]					0	[10]	0	[10]	0	[10]					0	[10]	0	[10]						0	[10]					0	[10]
Available-for-sale securities, Portfolio Concentration Rated AAA To AA, Amortized Cost	52,651				52,651								0						47,747						0						4,900						0						0						0						0						0						0						0						0		0		0						0		0							0						4
Available-for-sale Securities, Portfolio Concentration Rated AAA To AA, Fair Value	53,717				53,717								0						48,564						0						4,712						0						0						0						0						0						0						0						0		0		0						0		0							0						441
Available-for-sale Securities, Portfolio Concentration Rated A To BBB, Amortized Cost	57,416				57,416								0						15,819						0						30,191						0						0						0						0						0						0						0						0		0		0						0		0							11,406						0
Available-for-sale Securities, Portfolio Concentration Rated A To BBB, Fair Value	57,997				57,997								0						15,525						0						30,650						0						0						0						0						0						0						0						0		0		0						0		0							11,822						0
Available-for-sale Securities, Portfolio Concentration Rated Below Investment Grade, Amortized Cost	256,235				256,235								0						17,924						0						0						227,546						0						0						0						0						0						227,546						227,546		109,234		109,234						118,312		118,312							10,765						0
Available-for-sale Securities, Portfolio Concentration Rated Below Investment Grade, Fair Value	261,898				261,898								0						19,140						0						0						230,900						0						0						0						0						0						230,900						230,900		109,592		109,592						121,308		121,308							11,858						0
Available-for-sale Securities, Portfolio Concentration Not Rated, Amortized Cost	68,751				68,751								0						12,407						0						0						0						0						0						0						0						0						0						0		0		0						0		0							0						56,344
Available-for-sale Securities, Portfolio Concentration Not Rated, Fair Value	70,557				70,557								0						12,211						0						0						0						0						0						0						0						0						0						0		0		0						0		0							0						58,346
Other Than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Assumptions Used to Develop Projected Cash Flows [Abstract]
Unemployment rate																																																																									Increasing to 7.5% over the next 12 months and remain at 7.5% thereafter		Increasing to 8.5% over the next 12 months, dropping to 8% over the following 21 months and holding at 8% thereafter.		Increasing to 8.5% over the next 12 months, dropping to 8% over the following 21 months and holding at 8% thereafter.
Housing price appreciation/depreciation																																																																									Starting with current depreciated housing prices based on information derived from the FHFA1, appreciating 5% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter.	[11]	Starting with current depreciated housing prices based on information derived from the FHFA1, depreciating 2% over the next 12 months, then flat for the following 12 months and then appreciating at 2% per year thereafter.	[11]	Starting with current depreciated housing prices based on information derived from the FHFA1, depreciating 2% over the next 12 months and then appreciating at 2% per year thereafter.	[11]
Estimated liquidation costs																																																																									Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.		Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.		Reflect actual historical liquidations costs observed on Jumbo and Alt-A residential mortgage loans in securities owned by the Company.
Discount rates																																																																									Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.		Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.		Estimated cash flows were discounted at rates that range from 2.00% to 6.25% based on our current expected yields.
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized in Earnings, Net Qualitative Disclosures, Privately Issued Mortgage-backed Securities [Abstract]
Available-for-sale Securities, Privately Issued Residential Mortgage-backed Securities, Number of Securities																																																																									45						45		16		16						29		29
Available-for-sale Securities, Privately Issued Residential Mortgage-backed Securities, Credit losses Recognized [Abstract]
Available-for-sale Securities, Privately Issued Residential Mortgage-backed Securities, Number of Securities with Credit Losses In Current Period																																																																									1						45		1		16						0		29
Amount of Credit Losses Recognized in Current Period																																																																									$ 139						$ 67,346		$ 139		$ 49,126						$ 0		$ 18,220

[1] Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.

[2] Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

[3] Calculated on a taxable equivalent basis using a 39% effective tax rate.

[4] Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on variable rates which generally are reset within 35 days.

[5] The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale securities portfolio.

[6] Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty.

[7] Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:Municipal and other tax-exempt — $— $— $— $— $— $—Alt-A loans 10 11,336 707 48,849 1,905 60,185 2,612Jumbo-A loans 9 15,326 682 — — 15,326 682

[8] Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:Municipal and other tax-exempt 21 $12,431 $965 $— $— $12,431 $965Alt-A loans 13 — — 105,862 5,170 105,862 5,170Jumbo-A loans 14 — — 107,071 4,226 107,071 4,226

[9] Includes the following securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income:Municipal and other tax-exempt — $— $— $— $— $— $—Alt-A loans 12 $— $— $87,907 $2,580 $87,907 $2,580Jumbo-A loans 10 — — 29,128 1,602 29,128 1,602

[10] U.S. government and government sponsored enterprises are not rated by the nationally-recognized rating agencies as these securities are guaranteed by agencies of the U.S. government or government-sponsored enterprises.

[11] Federal Housing Finance Agency