CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total		Preferred Stock	Common Stock	Common Stock Warrants	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2014			28,405	31,599,150
Beginning balance at Dec. 31, 2014	$ 557,802		$ 28,405	$ 31,599	$ 717	$ 492,014	$ 7,311	$ (2,244)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	32,779						32,779
Other comprehensive loss	(1,884)							(1,884)
Restricted stock grants (in shares)				103,000
Restricted stock grants	0			$ 103		(103)
Stock-based compensation	366					366
Stock options exercised (in shares)				9,871
Stock options exercised	120			$ 10		110
Redemption of preferred stock (in shares)			(28,405)
Redemption of preferred stock	(28,405)		$ (28,405)
Preferred stock dividends	(822)						(822)
Common stock dividends	(3,159)						(3,159)
Cancellation of fractional shares (in shares)				(120)
Cancellation of fractional shares	0
Ending balance (in shares) at Sep. 30, 2015			0	31,711,901
Ending balance at Sep. 30, 2015	556,797		$ 0	$ 31,712	717	492,387	36,109	(4,128)
Beginning balance (in shares) at Dec. 31, 2015			0	31,726,767
Beginning balance at Dec. 31, 2015	562,549	[1]	$ 0	$ 31,727	717	492,828	44,794	(7,517)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	41,490						41,490
Other comprehensive loss	4,505							4,505
Restricted stock grants (in shares)				100,000
Restricted stock grants	0			$ 100		(100)
Stock-based compensation	1,083					1,083
Stock options exercised (in shares)				256,053
Stock options exercised	2,402			$ 256		2,146
Common stock dividends	(29,258)						(29,258)
Restricted stock forfeiture (in shares)				(10,000)
Restricted stock forfeiture	0			$ (10)		10
Acquisition of NewBridge Bancorp (in shares)				19,605,374
Acquisition of NewBridge Bancorp	431,336			$ 19,605		411,731
Shares issued for restricted stock units (in shares)				71,944
Shares issued for restricted stock units	0			$ 72		(72)
Ending balance (in shares) at Sep. 30, 2016			0	51,750,138
Ending balance at Sep. 30, 2016	$ 1,014,107		$ 0	$ 51,750	$ 717	$ 907,626	$ 57,026	$ (3,012)

[1] Derived from the audited consolidated financial statements included in the Company's 2015 Annual Report on Form 10-K.