Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Taxes [Abstract]

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

Income Tax Expenses (Credits)
	Year ended December 31,
	2019			2018			2017
	(Dollars in thousands)
Taxes provided in consolidated statement of operations on:
Income before equity income:
Current	$	16,557		$	20,429		$	34,301
Deferred	6,876			(4,953		)	(73,094		)
LIHTC	(3,504		)	(3,826		)	(1,190		)
	19,929			11,650			(39,983		)
Equity income	919			1,179			1,394
Taxes provided in consolidated statements of changes in stockholders’ equity:
Accumulated other comprehensive income	70,048			(50,025		)	43,448
	$	90,896		$	(37,196	)	$	4,859

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

Effective Tax Rate Reconciliation to Federal Income Tax Rate
	Year ended December 31,
	2019			2018			2017
	(Dollars in thousands)
Income before income taxes and equity income	$	142,781		$	101,033		$	144,760
Income tax at federal statutory rate	$	29,984		$	21,217		$	50,666
Tax effect (decrease) of:
Tax-exempt dividend and interest income	(3,949		)	(3,762		)	(3,384		)
Net impact of LIHTC	(3,504		)	(3,826		)	(1,190		)
Remeasurement of deferred taxes under the Tax Act	—			—			(84,806		)
Adjustments to tax-basis policy reserves	(2,460		)	—			—
Other items	(142		)	(1,979		)	(1,269		)
Income tax expense (benefit)	$	19,929		$	11,650		$	(39,983	)

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

Tax Effect of Temporary Differences Giving Rise to Deferred Income Tax Assets and Liabilities
	December 31,
	2019		2018
	(Dollars in thousands)
Deferred income tax assets:
Future policy benefits	$	33,719	$	25,137
Accrued benefit and compensation costs	3,736		3,854
Loss carryforwards	2,698		2,870
Derivative instruments	—		617
Other	1,060		1,938
	41,213		34,416
Deferred income tax liabilities:
Fixed maturity and equity securities	151,212		42,961
Deferred acquisition costs	26,813		55,810
Value of insurance in force acquired	551		2,181
Property and equipment	7,961		7,021
Derivative instruments	4,386		—
Other	2,663		1,892
	193,586		109,865
Net deferred income tax liability	$	152,373	$	75,449