Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Intangible Assets

The following table sets forth activity for goodwill and other intangible assets for the period:

	Years Ended December 31,
	2013			2012			2011
	(in thousands)
Total goodwill, beginning of period	$	115,554		$	115,554		$	109,639
Established through acquisitions	228,398			—			5,915
Total goodwill, end of period	343,952			115,554			115,554
Other intangible assets, net
Core deposit intangible:
Gross core deposit intangible balance, beginning of period	32,441			32,441			26,652
Accumulated amortization, beginning of period	(16,720		)	(12,275		)	(7,956		)
Core deposit intangible, net, beginning of period	15,721			20,166			18,696
Established through acquisitions	15,257			—			5,789
CDI current period amortization	(6,045		)	(4,445		)	(4,319		)
Total core deposit intangible, end of period	24,933			15,721			20,166
Intangible assets not subject to amortization	919			—			—
Other intangible assets, net at end of period	25,852			15,721			20,166
Total goodwill and intangible assets, end of period	$	369,804		$	131,275		$	135,720

Estimated Future Amortization Expense of Core Deposit Intangibles

The following table provides the estimated future amortization expense of core deposit intangibles for the succeeding five years:

Years Ending December 31,	(in thousands)
2014	$	5,963
2015	4,934
2016	4,195
2017	3,361
2018	2,500