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Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) in trading revenues. Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of gain (loss) recognized in earnings, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3).

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Purchases that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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Sales that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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Settlements that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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This element represents [net] transfers in to and out of assets measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(3)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Financial Instruments (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Agency mortgage-backed securities	Jun. 30, 2012 Agency mortgage-backed securities	Jun. 30, 2013 Agency mortgage-backed securities	Jun. 30, 2012 Agency mortgage-backed securities	Jun. 30, 2013 Collateralized debt obligations	Jun. 30, 2012 Collateralized debt obligations	Jun. 30, 2013 Collateralized debt obligations	Jun. 30, 2012 Collateralized debt obligations	Jun. 30, 2013 Residential mortgage-backed securities	Jun. 30, 2012 Residential mortgage-backed securities	Jun. 30, 2013 Residential mortgage-backed securities	Jun. 30, 2012 Residential mortgage-backed securities	Jun. 30, 2013 Equity securities	Jun. 30, 2012 Equity securities	Jun. 30, 2013 Equity securities	Dec. 31, 2011 Equity securities	Jun. 30, 2013 Commercial mortgage-backed securities	Jun. 30, 2012 Commercial mortgage-backed securities	Jun. 30, 2013 Commercial mortgage-backed securities	Jun. 30, 2012 Commercial mortgage-backed securities	Jun. 30, 2012 Other debt obligations	Jun. 30, 2012 Other debt obligations	Jun. 30, 2012 Preferred stock	Jun. 30, 2013 Investments	Jun. 30, 2012 Investments	Jun. 30, 2013 Investments	Jun. 30, 2012 Investments	Jun. 30, 2012 Derivatives	Jun. 30, 2013 Derivatives	Jun. 30, 2012 Derivatives
Financial Instruments
Transfers of assets between Level 1 to Level 2	$ 0	$ 0	$ 0	$ 0
Transfers of liabilities between Level 1 to Level 2	0	0	0	0
Transfers of assets between Level 2 to Level 1	0	0	0	0
Transfers of liabilities between Level 2 to Level 1	0	0	0	0
Changes in the company's Level 3 financial instruments
Balance at the beginning of the period	22,398	75,146	23,418	79,468	5	362	1,110	1,367	659	585	671	647	91	26,603	149	18,419	28	103	28	112	18	27,850	18	38,154	318	192	571	21,597	18,440	20,478	18,310	885	964	1,696
Total gains or (losses) (realized and unrealized)	(1,294)	(4,331)	(1,175)	(5,211)	(5)	(361)	(50)	(408)	(555)	(31)	(567)	(93)	(90)	(2,871)	(86)	(1,403)	(28)	9	(28)		(15)	(2,638)	(15)	(6,081)	(26)	(16)	188	(601)	(150)	(429)	(20)	1,737		2,622
Purchases		34,330	947	35,777		1,750		1,760		61		61		12,203		11,067						16,746		10,108	2,770	6,357	5,624		800	947	800
Sales	(109)	(59,878)	(1,219)	(63,215)		(264)	(1,060)	(1,232)	(104)	(61)	(104)	(61)	(1)	(24,878)	(51)	(17,224)					(3)	(34,171)	(3)	(34,339)	(504)	(3,976)	(6,383)	(1)		(1)
Settlements		(1,597)	(976)	(3,149)		(1)		(1)						(702)	(12)	(504)						(4)		(59)	(5)	(4)						(885)	(964)	(2,581)
Transfers in and/or out of Level 3		(2,101)		(2,101)																		(2,101)		(2,101)
Balance at the end of the period	20,995	41,569	20,995	41,569		1,486		1,486		554		554		10,355		10,355		112		112		5,682		5,682	2,553	2,553		20,995	19,090	20,995	19,090	1,737		1,737
Changes in unrealized gains/(losses) on Level 3 assets still held at the reporting date	$ (542)	$ (873)	$ (354)	$ (844)		$ (177)		$ (208)		$ (31)		$ (93)		$ (882)		$ (859)		$ 9				$ (1,036)		$ (1,253)	$ (15)	$ (15)		$ (542)	$ (478)	$ (354)	$ (153)	$ 1,737		$ 1,737