Income Taxes (Tables)

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Types of Temporary Differences Between Tax Basis of Assets and Liabilities

The following table is a summary of the types of temporary differences between the tax basis of assets and liabilities and their financial reporting amounts that give rise to deferred income tax assets and liabilities and their approximate tax effects as of the dates indicated.

	June 30,						December 31,
	2015			2014			2014
	(Dollars in thousands)
Deferred tax assets:
Allowance for loan and lease losses	$	21,617		$	18,116		$	20,324
Differences in amounts reflected in the financial statements and income tax basis of purchased loans not previously covered by FDIC loss share agreements		28,605			26,024			20,444
Differences in amounts reflected in the financial statements and income tax basis for deposits assumed in acquisitions		7,703			2,405			1,337
Stock-based compensation		4,477			3,364			3,268
Deferred compensation		2,092			1,890			1,991
Foreclosed assets		3,111			5,624			3,503
Deferred fees and costs on loans and leases		6,405			2,059			4,785
Differences in amounts reflected in the financial statements and income tax basis of assets acquired and liabilities assumed in FDIC-assisted acquisitions		8,032			7,397			8,098
Acquired net operating losses		13,456			13,662			13,332
Other, net		1,949			1,486			2,568
Total gross deferred tax assets		97,447			82,027			79,650
Less valuation allowance		(474	)		(474	)		(474	)
Net deferred tax asset		96,973			81,553			79,176
Deferred tax liabilities:
Accelerated depreciation on premises and equipment		18,921			18,028			18,653
Investment securities AFS		3,798			5,022			7,692
Acquired intangible assets		10,407			10,847			9,743
Total gross deferred tax liabilities		33,126			33,897			36,088
Net deferred tax assets	$	63,847		$	47,656		$	43,088