Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The components of income tax expense for continuing operations for the years ended December 31, 2017, 2016, and 2015 are as follows:



	Year Ended December 31,
	2017		2016		2015
	(In thousands)
Current expense:
Federal	$	17,176	$	20,237	$	25,631
State	6,509		7,778		9,183
Total current expense	23,685		28,015		34,814
Deferred expense/(benefit):
Federal	19,820		1,976		(3,185		)
State	2,691		972		(1,237		)
Total deferred expense/(benefit)	22,511		2,948		(4,422		)
Income tax expense	$	46,196	$	30,963	$	30,392

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

Reconciliations between the Federal statutory income tax rate of 35% to the effective income tax rate for the years ended December 31, 2017, 2016, and 2015 are as follows:



	Year Ended December 31,
	2017		2016		2015
Statutory Federal income tax rate	35.0	%	35.0	%	35.0	%
Increase/ (decrease) resulting from:
Re-measurement of deferred tax assets and liabilities	13.7	%	—	%	—	%
Nondeductible goodwill	10.1	%	—	%	—	%
Tax-exempt interest, net	(10.3	)%	(7.5	)%	(7.1	)%
State and local income tax, net of Federal tax benefit	6.9	%	5.6	%	5.5	%
Tax credits	(3.1	)%	(2.2	)%	(1.9	)%
Investments in affordable housing projects	2.2	%	0.9	%	0.9	%
Noncontrolling interests	(1.5	)%	(1.4	)%	(1.6	)%
Out-of-period adjustment	—	%	—	%	1.3	%
Other, net	0.5	%	0.2	%	0.5	%
Effective income tax rate	53.5	%	30.6	%	32.6	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The components of gross deferred tax assets and gross deferred tax liabilities at December 31, 2017 and 2016 are as follows:



	December 31,
	2017		2016
	(In thousands)
Gross deferred tax assets:
Allowance for loan and OREO losses	$	22,782	$	35,545
Interest on nonaccrual loans	295		548
Stock compensation	3,156		6,079
Deferred and accrued compensation	11,822		19,801
Contingent payments	1,236		1,868
Unrealized loss on investments	3,345		8,264
Other	1,437		905
Gross deferred tax assets	44,073		73,010
Total deferred tax assets	44,073		73,010
Gross deferred tax liabilities:
Deferred income on repurchase of debt	832		2,692
Goodwill and acquired intangible assets	12,246		12,929
Fixed assets	991		67
Prepaid expenses	347		611
Other	626		1,251
Total gross deferred tax liabilities	15,042		17,550
Net deferred tax asset	$	29,031	$	55,460

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A reconciliation of the beginning and ending gross amount of unrecognized tax benefits under the provisions of ASC 740-10 is as follows:



	2017			2016			2015
	(In thousands)
Balance at January 1	$	974		$	1,022		$	1,067
Additions based on tax positions related to the current year	183			160			163
Additions based on tax positions taken in prior years	227			—			—
Decreases based on the expiration of statute of limitations	(359		)	(208		)	(208		)
Balance at December 31	$	1,025		$	974		$	1,022