Interim Consolidated Statements of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income before noncontrolling interests	$ 216,180	$ 53,140	$ 353,213	$ 150,151
Change in cumulative translation (loss) income:
Foreign currency translation (loss) income	(1,540)	2,940	(6,341)	755
Related tax benefit (expense)	631	(1,190)	2,539	(314)
Change in unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses)	27,289	27,596	(167,021)	64,631
Related tax (expense) benefit	(11,032)	(11,473)	68,299	(26,290)
Reclassification adjustment for (gains) losses included in net income	(219)	101	(949)	(3,592)
Related tax benefit (expense)	85	(41)	363	1,421
Other comprehensive income (loss), net of tax	15,214	17,933	(103,110)	36,611
Comprehensive income	231,394	71,073	250,103	186,762
Comprehensive income attributable to noncontrolling interests	(148,559)	(10,851)	(196,117)	(25,469)
Comprehensive income attributable to SVBFG	$ 82,835	$ 60,222	$ 53,986	$ 161,293