Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2015

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Schedule of Components of Comprehensive Income-Gross and Net of Tax

First Quarter 2015
($ in thousands)	Gross			Tax		Net
Net income	$	56,290		16,582		39,708
Components of OCI:
Unrealized gains on investment securities:
Unrealized holding gains during the period	23,977			8,391		15,586
Amounts reclassified into net income:
HTM securities	(261		)	(91	)	(170	)
Non-credit OTTI	357			125		232
Realized gains on AFS securities	(19,895		)	(6,963	)	(12,932	)
Net unrealized gains	4,178			1,462		2,716
Defined benefit pension and post-retirement plans:
Amounts reclassified into net income:
Net actuarial loss	1,709			598		1,111
Defined benefit pension and post-retirement plans	1,709			598		1,111
Other comprehensive income	5,887			2,060		3,827
Comprehensive income	$	62,177		18,642		43,535

First Quarter 2014
($ in thousands)	Gross			Tax		Net
Net income	$	25,084		7,110		17,974
Components of OCI:
Unrealized gains on investment securities:
Unrealized holding gains during the period	32,964			11,538		21,426
Amounts reclassified into net income:
HTM securities	(456		)	(160	)	(296	)
Realized gains on AFS securities	(7,229		)	(2,530	)	(4,699	)
Net unrealized gains	25,279			8,848		16,431
Defined benefit pension and post-retirement plans:
Amounts reclassified into net income:
Net actuarial loss	380			133		247
Defined benefit pension and post-retirement plans	380			133		247
Other comprehensive income	25,659			8,981		16,678
Comprehensive income	$	50,743		16,091		34,652

Schedule of Components of Accumulated Other Comprehensive Income

March 31, 2015
	Net Unrealized (Loss) Gain on Investment Securities									Defined Benefit Pension and Post-Retirement Plans
($ in thousands)	OTTI Related			HTM Related		All Other		Investments Subtotal				Total AOCI
Balance, December 31, 2014	$	(514	)	623		80,284		80,393		(60,605	)	19,788
OCI before reclassifications	—			—		15,586		15,586		—		15,586
Amounts reclassified from AOCI	232			(170	)	(12,932	)	(12,870	)	1,111		(11,759	)
Net current period OCI	232			(170	)	2,654		2,716		1,111		3,827
Balance, March 31, 2015	$	(282	)	453		82,938		83,109		(59,494	)	23,615

Schedule of Reclassifications Out Of Accumulated Other Comprehensive Income

	Quarter ended March 31,
($ in thousands)	2015		2014		Affected Line Item in the Unaudited Consolidated Statement of Income
OTTI related
Non-credit OTTI on disposed securities	357		—		Net realized gains
	357		—		Income before federal income tax
	(125	)	—		Total federal income tax expense
	232		—		Net income
HTM related
Unrealized losses on HTM disposals	50		24		Net realized gains
Amortization of net unrealized gains on HTM securities	(311	)	(480	)	Net investment income earned
	(261	)	(456	)	Income before federal income tax
	91		160		Total federal income tax expense
	(170	)	(296	)	Net income
Realized gains and losses on AFS and OTTI
Realized gains on AFS disposals and OTTI	(19,895	)	(7,229	)	Net realized gains
	(19,895	)	(7,229	)	Income before federal income tax
	6,963		2,530		Total federal income tax expense
	(12,932	)	(4,699	)	Net income
Defined benefit pension and post-retirement life plans
Net actuarial loss	371		87		Loss and loss expense incurred
	1,338		293		Policy acquisition costs
Total defined benefit pension and post-retirement life	1,709		380		Income before federal income tax
	(598	)	(133	)	Total federal income tax expense
	1,111		247		Net income
Total reclassifications for the period	(11,759	)	(4,748	)	Net income