Interim Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	[1],[2],[3]	$ 94,459	$ 10,356	$ 196,849	[4],[5]	$ 284,711	[4],[6]
Change in cumulative translation gains:
Foreign currency translation gains		529	157	2,690		1,621
Related tax expense		(321)	(76)	(1,141)		(654)
Change in unrealized gains on available-for-sale securities:
Unrealized holding (losses) gains		(45,541)	82,064	41,566		111,393
Related tax benefit (expense)		18,191	(33,203)	(17,024)		(45,008)
Reclassification adjustment for (gains) losses included in net income		(141)	16,480	(2,737)		16,421
Related tax expense (benefit)		57	(6,653)	1,105		(6,630)
Cumulative-effect adjustment for unrealized gains on securities transferred from available-for-sale to held-to-maturity		0	36,653	0		36,653
Related tax expense		0	(14,756)	0		(14,756)
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity		(2,604)	0	(5,432)		0
Related tax benefit		1,047	0	2,186		0
Other comprehensive (loss) income, net of tax		(28,783)	80,666	21,213		99,040
Comprehensive income		65,676	91,022	218,062		383,751
Comprehensive (income) loss attributable to noncontrolling interests (2)	[1]	(8,316)	40,597	(22,190)	[5]	(142,808)
Comprehensive income attributable to SVBFG		$ 57,360	$ 131,619	$ 195,872		$ 240,943

[1] Amounts for the six months ended June 30, 2015, have been revised to reflect the retrospective application of new accounting guidance adopted in the second quarter of 2015 related to our consolidated variable interest entities (ASU 2015-02). Amounts prior to January 1, 2015 have not been revised for the adoption of this guidance. See Note 1— "Basis of Presentation” of the “Notes to Interim Consolidated Financial Statements (unaudited)” under Part I, Item 1 of this report for additional details.

[2] Prior period amounts have been revised to reflect the retrospective application of new accounting guidance adopted in the first quarter of 2015 related to our investments in qualified affordable housing projects (ASU 2014-01). See Note 1— "Basis of Presentation" of the "Notes to Interim Consolidated Financial Statements" under Part I, Item 1 in this report.

[3] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjA2NWJiNjIxZjM0ZjRmOWVhYzRkYjZjMWUyZjAzZTk2fFRleHRTZWxlY3Rpb246QzFCMzI2RjAxNTNCRTQ1RTEyOEUwMDhEODUyMTAyQjMM}

[4] Cash flows for the six months ended June 30, 2015 were revised to reflect the adoption of ASU 2015-02 as of January 1, 2015 and cash flows for the six months ended June 30, 2014 were revised to reflect the retrospective application of our adoption of ASU 2014-01.

[5] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjA2NWJiNjIxZjM0ZjRmOWVhYzRkYjZjMWUyZjAzZTk2fFRleHRTZWxlY3Rpb246ODVBMjJCNzk0NDdCOEEwRjQ3QTIwMTA2RUZDRUFERDEM}

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