Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

A rollforward of the components of accumulated other comprehensive income (loss) is included as follows:

(in thousands)	Available for Sale Securities			Held to Maturity Securities Transferred from AFS			Employee Benefit Plans			Loss on Effective Cash Flow Hedges			Total
Balance, December 31, 2011	$	60,478		$	—		$	(86,923	)	$	(65	)	$	(26,510	)
Net change in unrealized gain (loss)		6,076			—			2,566			(502	)		8,140
Transfer of net unrealized gain from AFS to HTM, net of cumulative tax effect		(24,598	)		24,598			—			—			—
Reclassification adjustment for net losses realized and included in earnings		(1,441	)		—			7,548			311			6,418
Amortization of unrealized net gain on securities transferred to held to maturity		—			(8,752	)		—			—			(8,752	)
Income tax expense (benefit)		1,661			(3,244	)		3,879			(75	)		2,221
Balance, December 31, 2012	$	38,854		$	19,090		$	(80,688	)	$	(181	)	$	(22,925	)
Net change in unrealized gain (loss)		(105,270	)		—			82,502			(4	)		(22,772	)
Transfer of net unrealized loss from AFS to HTM, net of cumulative tax effect		36,208			(36,208	)		—			—			—
Reclassification adjustment for net losses realized and included in earnings		(105	)		—			8,331			301			8,527
Amortization of unrealized net gain on securities transferred to held to maturity		—			(6,371	)		—			—			(6,371	)
Income tax expense (benefit)		(38,576	)		(2,300	)		32,598			116			(8,162	)
Balance, December 31, 2013	$	8,263		$	(21,189	)	$	(22,453	)	$	—		$	(35,379	)
Net change in unrealized gain (loss)		15,413			—			(41,132	)		(592	)		(26,311	)
Reclassification adjustment for net losses realized and included in earnings		—			—			390			—			390
Amortization of unrealized net gain on securities transferred to held to maturity		—			3,297			—			—			3,297
Income tax expense (benefit)		5,675			1,182			(14,569	)		(217	)		(7,929	)
Balance, December 31, 2014	$	18,001		$	(19,074	)	$	(48,626	)	$	(375	)	$	(50,074	)

Summary of Items in Consolidated Income Statements Affected by Amounts Reclassified from Accumulated Other Comprehensive Income

The following table shows the line items in the consolidated income statements affected by amounts reclassified from accumulated other comprehensive income:

Twelve Months Ended December 31,
Amount reclassified from AOCI (in thousands)	2014		2013			Increase (decrease) in affected line item in the income statement
Gains and losses on sale of AFS securities	$	—	$	(105	)	Securities gains (losses)
Tax effect		—		(37	)	Income taxes
Net of tax		—		(68	)	Net income
Amortization/accretion of unrealized net gain/loss on securities transferred to HTM	$	3,297	$	(6,371	)	Interest income
Tax effect		1,154		(2,230	)	Income taxes
Net of tax		2,143		(4,141	)	Net income
Amortization of defined benefit pension and post-retirement items	$	390	$	8,331		(a) Employee benefits expense
Tax effect		137		2,916		Income taxes
Net of tax		253		5,415		Net income
Gains and losses on cash flow hedges	$	—	$	301		Interest expense
Tax effect		—		105		Income taxes
Net of tax		—		196		Net income
Total reclassifications, net of tax	$	2,396	$	1,402		Net income

(a) These accumulated other comprehensive income components are included in the computation of net periodic pension and post-retirement cost that is reported with employee benefits expense (see footnote 11 for additional details).

Schedule of Compliance with Regulatory Capital Requirements

Following is a summary of the actual regulatory capital amounts and ratios for the Company and the Bank together with corresponding regulatory capital requirements at December 31, 2014 and 2013:

	Actual				Required for Minimum Capital Adequacy				To Be Well Capitalized Under Prompt Corrective Action Provisions
($ in thousands)	Amount		Ratio %		Amount		Ratio %		Amount		Ratio %
At December 31, 2014
Total capital (to risk weighted assets)
Company	$	1,945,710		12.30	$	1,265,796		8.00		n/a		n/a
Whitney Bank *		1,925,175		12.20		1,262,439		8.00	$	1,578,049		10.00
Tier 1 capital (to risk weighted assets)
Company	$	1,777,348		11.23	$	632,898		4.00		n/a		n/a
Whitney Bank *		1,756,813		11.13		631,220		4.00	$	946,829		6.00
Tier 1 leverage capital
Company	$	1,777,348		9.17	$	581,263		3.00		n/a		n/a
Whitney Bank *		1,756,813		9.13		577,493		3.00	$	962,488		5.00
At December 31, 2013
Total capital (to risk weighted assets)
Company	$	1,877,832		13.11	$	1,146,061		8.00		n/a		n/a
Hancock Bank		636,871		13.48		378,093		8.00	$	472,617		10.00
Whitney Bank		1,187,699		12.25		775,709		8.00		969,636		10.00
Tier 1 capital (to risk weighted assets)
Company	$	1,685,058		11.76	$	573,030		4.00		n/a		n/a
Hancock Bank		577,280		12.21		189,047		4.00	$	283,570		6.00
Whitney Bank		1,088,339		11.22		387,854		4.00		581,782		6.00
Tier 1 leverage capital
Company	$	1,685,058		9.34	$	541,066		3.00		n/a		n/a
Hancock Bank		577,280		9.01		192,137		3.00	$	320,228		5.00
Whitney Bank		1,088,339		9.02		361,878		3.00		603,129		5.00

* (Consolidated charter effective 3/31/2014)