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Accumulated Other Comprehensive Income
 9 Months Ended
Sep. 30, 2017
Equity [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income

The following table presents changes in other comprehensive income: 
 
Before-Tax Amount
 
Tax Effect
 
Net of Tax Amount
 
(in thousands)
Three months ended September 30, 2017
 
 
 
 
 
Unrealized gain on securities
$
5,109

 
$
(1,789
)
 
$
3,320

Reclassification adjustment for securities gains included in net income (1)
(4,597
)
 
1,609

 
(2,988
)
Amortization of net unrecognized pension and postretirement items (3)
523

 
(183
)
 
340

Total Other Comprehensive Income
$
1,035

 
$
(363
)
 
$
672

Three months ended September 30, 2016
 
 
 
 
 
Unrealized loss on securities
$
(5,505
)
 
$
1,925

 
$
(3,580
)
Reclassification adjustment for securities gains included in net income (1)
(2
)
 
1

 
(1
)
Amortization of unrealized loss on derivative financial instruments(2)
6

 
(2
)
 
4

Amortization of net unrecognized pension and postretirement items (3)
583

 
(204
)
 
379

Total Other Comprehensive Loss
$
(4,918
)
 
$
1,720

 
$
(3,198
)
 
 
 
 
 
 
Nine months ended September 30, 2017
 
 
 
 
 
Unrealized gain on securities
$
27,482

 
$
(9,621
)
 
$
17,861

Reclassification adjustment for securities gains included in net income (1)
(7,139
)
 
2,500

 
(4,639
)
Amortization of net unrecognized pension and postretirement items (3)
1,575

 
(551
)
 
1,024

Total Other Comprehensive Income
$
21,918

 
$
(7,672
)
 
$
14,246

 
 
 
 
 
 
Nine months ended September 30, 2016
 
 
 
 
 
Unrealized gain on securities
$
40,441

 
$
(14,156
)
 
$
26,285

Reclassification adjustment for securities gains included in net income (1)
(1,025
)
 
359

 
(666
)
Amortization of unrealized loss on derivative financial instruments (2)
18

 
(6
)
 
12

Amortization of net unrecognized pension and postretirement items (3)
1,349

 
(472
)
 
877

Total Other Comprehensive Income
$
40,783

 
$
(14,275
)
 
$
26,508



(1)
Amounts reclassified out of accumulated other comprehensive income. Before-tax amounts included in "Investment securities gains, net" on the consolidated statements of income. See Note 4, "Investment Securities," for additional details.
(2)
Amounts reclassified out of accumulated other comprehensive income. Before-tax amounts included in "Interest expense" on the consolidated statements of income.
(3)
Amounts reclassified out of accumulated other comprehensive income. Before-tax amounts included in "Salaries and employee benefits" on the consolidated statements of income. See Note 8, "Employee Benefit Plans," for additional details.










The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax: 
 
Unrealized Gains (Losses) on Investment Securities Not Other-Than-Temporarily Impaired
 
Unrealized Non-Credit Gains (Losses) on Other-Than-Temporarily Impaired Debt Securities
 
Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps
 
Unrecognized Pension and Postretirement Plan Income (Costs)
 
Total
 
(in thousands)
Three months ended September 30, 2017
 
 
 
 
 
 
 
 
 
Balance at June 30, 2017
$
(10,157
)
 
$
273

 
$
—

 
$
(14,991
)
 
$
(24,875
)
Other comprehensive income before reclassifications
3,320

 
—

 
—

 
—

 
3,320

Amounts reclassified from accumulated other comprehensive income (loss)
(2,988
)
 
—

 
—

 
340

 
(2,648
)
Balance at September 30, 2017
$
(9,825
)
 
$
273

 
$
—

 
$
(14,651
)
 
$
(24,203
)
Three months ended September 30, 2016

 

 
 
 

 

Balance at June 30, 2016
$
22,701

 
$
458

 
$
(7
)
 
$
(15,463
)
 
$
7,689

Other comprehensive loss before reclassifications
(3,580
)

—

 
—

 
—

 
(3,580
)
Amounts reclassified from accumulated other comprehensive income (loss)
(1
)
 
—

 
4

 
379

 
382

Balance at September 30, 2016
$
19,120

 
$
458

 
$
(3
)
 
$
(15,084
)
 
$
4,491

 
 
 
 
 
 
 
 
 
 
Nine months ended September 30, 2017
 
 
 
 
 
 
 
 
 
Balance at December 31, 2016
$
(23,047
)
 
$
273

 
$
—

 
$
(15,675
)
 
$
(38,449
)
Other comprehensive income before reclassifications
17,861

 
—

 
—

 
—

 
17,861

Amounts reclassified from accumulated other comprehensive income (loss)
(4,639
)
 
—

 
—

 
1,024

 
(3,615
)
Balance at September 30, 2017
$
(9,825
)
 
$
273

 
$
—

 
$
(14,651
)
 
$
(24,203
)
Nine months ended September 30, 2016
 
 
 
 
 
 
 
 
 
Balance at December 31, 2015
$
(6,499
)
 
$
458

 
$
(15
)
 
$
(15,961
)
 
$
(22,017
)
Other comprehensive income before reclassifications
26,285

 
—

 
—

 
—

 
26,285

Amounts reclassified from accumulated other comprehensive income (loss)
(666
)
 
—

 
12

 
877

 
223

Balance at September 30, 2016
$
19,120

 
$
458

 
$
(3
)
 
$
(15,084
)
 
$
4,491