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Federal Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of Reconciliation of Federal Income Tax on Income at the Corporate Rate to the Effective Tax Rate

($ in thousands)		2015				2014			2013
Tax at statutory rate of 35%		$	81,442			68,996			50,331
Tax-advantaged interest		(13,164		)		(12,926	)		(12,718	)
Dividends received deduction		(1,817		)		(1,121	)		(1,174	)
Other		370				355			(52	)
Federal income tax expense from continuing operations		$	66,831			55,304			36,387

Schedule of Deferred Tax Assets and Liabilities

($ in thousands)		2015				2014
Deferred tax assets:
Net loss reserve discounting		$	74,436			84,502
Net unearned premiums		72,057				66,470
Employee benefits		30,432				33,721
Long-term incentive compensation plans		15,551				13,625
Temporary investment write-downs		5,419				3,939
Net operating loss		1,454				2,136
Alternative minimum tax credits		—				7,400
Other		8,132				9,237
Total deferred tax assets		207,481				221,030
Deferred tax liabilities:
Deferred policy acquisition costs		72,481				63,242
Unrealized gains on investment securities		24,228				43,289
Other investment-related items, net		5,566				5,088
Accelerated depreciation and amortization		12,510				10,962
Total deferred tax liabilities		114,785				122,581
Net deferred federal income tax asset		$	92,696			98,449

Summary of Operating Loss Carryforwards

As of December 31, 2015, we had federal tax NOL carryforwards of $4.2 million. These NOLs, which are subject to an annual limitation of $1.9 million, will expire between 2029 and 2031 as follows:

($ in thousands)		Gross NOL				Tax Effected NOL
2029		$	75			26
2030		3,999				1,400
2031		79				28
Total NOL carryforwards		$	4,153			1,454

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- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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Tabular disclosure of pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
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