CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)		Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated (Deficit) [Member]	Bridge Capital Holdings [Member]	[2]	Bridge Capital Holdings [Member] Common Stock [Member]		Bridge Capital Holdings [Member] Additional Paid in Capital [Member]	[2]
Beginning balance at Dec. 31, 2012		$ 759,421,000	$ 141,000,000	$ 9,000	$ 784,852,000	$ 8,226,000	$ (174,666,000)
Beginning balance, shares at Dec. 31, 2012			141,000	86,465,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		114,965,000					114,965,000
Exercise of stock options, shares				440,000
Exercise of stock options		4,595,000			4,595,000
Restricted stock grants, net, shares				281,000
Restricted stock grants, net		7,699,000			7,699,000
Dividends on preferred stock		(1,410,000)					(1,410,000)
Other comprehensive (loss) income, net		(29,772,000)				(29,772,000)
Ending balance at Dec. 31, 2013		855,498,000	$ 141,000,000	$ 9,000	797,146,000	(21,546,000)	(61,111,000)
Ending balance, shares at Dec. 31, 2013			141,000	87,186,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		147,951,000					147,951,000
Exercise of stock options, shares				625,000
Exercise of stock options		8,294,000			8,294,000
Restricted stock grants, net, shares				332,000
Restricted stock grants, net		9,141,000			9,141,000
Stock Issued During Period, Shares, New Issues				548,122
Stock Issued During Period, Value, New Issues		$ 13,746,000		$ 14,200,000.0	13,746,000
Stock Redeemed or Called During Period, Shares		(70,500)	(70,000)
Stock Redeemed or Called During Period, Value		$ (70,500,000)	$ (70,500,000)
Dividends on preferred stock		(1,387,000)					(1,387,000)
Other comprehensive (loss) income, net		38,185,000				38,185,000
Ending balance at Dec. 31, 2014		1,000,928,000	$ 70,500,000	$ 9,000	828,327,000	16,639,000	85,453,000
Ending balance, shares at Dec. 31, 2014			71,000	88,691,000
Adjusted balance at Dec. 31, 2014	[1]	1,000,928,000	$ 70,500,000	$ 9,000	828,327,000	32,948,000	69,144,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 194,244,000					194,244,000
Exercise of stock options, shares		182,000		182,000
Exercise of stock options		$ 1,935,000			1,935,000
Restricted stock grants, net, shares				457,000
Restricted stock grants, net		17,014,000			17,014,000
Stock Issued During Period, Shares, New Issues				760,000						12,997,000
Stock Issued During Period, Value, New Issues		$ 28,288,000			28,288,000			$ 431,031,000		$ 1,000	[2]	$ 431,030,000
Stock Redeemed or Called During Period, Shares		(70,500)	(71,000)
Stock Redeemed or Called During Period, Value		$ (70,500,000)	$ (70,500,000)
Dividends on preferred stock		(750,000)					(750,000)
Other comprehensive (loss) income, net		(10,688,000)				(10,688,000)
Ending balance at Dec. 31, 2015		$ 1,591,502,000	$ 0	$ 10,000	$ 1,306,594,000	$ 22,260,000	$ 262,638,000
Ending balance, shares at Dec. 31, 2015			0	103,087,000

[1] As adjusted, see "Note 10. Qualifying Debt" to the Consolidated Financial Statements describing the $16.3 million reclassification made between retained earnings and AOCI.

[2] Includes value of certain share-based awards replaced in connection with the acquisition.