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Accumulated Other Comprehensive Income (Loss) (Tables)
 9 Months Ended
Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule Of Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive loss included the following as of September 30, 2017 and December 31, 2016:
 
September 30, 2017
 
December 31, 2016
(Dollars in thousands)
Accumulated
other
comprehensive
loss
 
Deferred
tax benefit
 
Accumulated
other
comprehensive
loss,
net of tax
 
Accumulated
other
comprehensive
loss
 
Deferred
tax benefit
 
Accumulated
other
comprehensive
loss,
net of tax
Unrealized losses on investment securities available for sale
$
(11,752
)
 
$
(4,157
)
 
$
(7,595
)
 
$
(72,707
)
 
$
(26,832
)
 
$
(45,875
)
Funded status of defined benefit plans
(134,484
)
 
(49,755
)
 
(84,729
)
 
(141,774
)
 
(52,457
)
 
(89,317
)
Total
$
(146,236
)
 
$
(53,912
)
 
$
(92,324
)
 
$
(214,481
)
 
$
(79,289
)
 
$
(135,192
)

The following table highlights changes in accumulated other comprehensive (loss) income by component for the three and nine months ended September 30, 2017 and September 30, 2016:
 
Three months ended September 30, 2017
(Dollars in thousands)
Unrealized (losses) gains on available for sale securities1
 
(Losses) gains on cash flow hedges1
 
Defined benefit pension items1
 
Total
Beginning balance
$
(16,648
)
 
$
—

 
$
(86,195
)
 
$
(102,843
)
Other comprehensive income before reclassifications
9,895

 
—

 
—

 
9,895

Amounts reclassified from accumulated other comprehensive (loss) income
(842
)
 
—

 
1,466

 
624

Net current period other comprehensive income
9,053

 
—

 
1,466

 
10,519

Ending balance
$
(7,595
)
 
$
—

 
$
(84,729
)
 
$
(92,324
)
 
 
 
 
 
 
 
 
 
Three months ended September 30, 2016
 
Unrealized gains (losses) on available for sale securities1
 
(Losses) gains on cash flow hedges1
 
Defined benefit pension items1
 
Total
Beginning balance
$
31,213

 
$
—

 
$
(46,240
)
 
$
(15,027
)
Other comprehensive loss before reclassifications
(722
)
 
—

 
—

 
(722
)
Amounts reclassified from accumulated other comprehensive (loss) income
(161
)
 
—

 
1,126

 
965

Net current period other comprehensive (loss) income
(883
)
 
—

 
1,126

 
243

Ending balance
$
30,330

 
$
—

 
$
(45,114
)
 
$
(14,784
)
 
 
 
 
 
 
 
 
 
Nine months ended September 30, 2017
 
Unrealized (losses) gains on available for sale securities1
 
(Losses) gains on cash flow hedges1
 
Defined benefit pension items1
 
Total
Beginning balance
$
(45,875
)
 
$
—

 
$
(89,317
)
 
$
(135,192
)
Other comprehensive income before reclassifications
41,218

 
—

 
—

 
41,218

Amounts reclassified from accumulated other comprehensive (loss) income
(2,938
)
 
—

 
4,588

 
1,650

Net current period other comprehensive income
38,280

 
—

 
4,588

 
42,868

Ending balance
$
(7,595
)
 
$
—

 
$
(84,729
)
 
$
(92,324
)
 
 
 
 
 
 
 
 
 
Nine months ended September 30, 2016
 
Unrealized (losses) gains on available for sale securities1
 
(Losses) gains on cash flow hedges1
 
Defined benefit pension items1
 
Total
Beginning balance
$
(15,125
)
 
$
(892
)
 
$
(48,423
)
 
$
(64,440
)
Other comprehensive income before reclassifications
56,381

 
892

 
—

 
57,273

Amounts reclassified from accumulated other comprehensive (loss) income
(10,926
)
 
—

 
3,309

 
(7,617
)
Net current period other comprehensive income
45,455

 
892

 
3,309

 
49,656

Ending balance
$
30,330

 
$
—

 
$
(45,114
)
 
$
(14,784
)
1 All amounts are net of tax.
Reclassification out of Accumulated Other Comprehensive Income
(Dollars in thousands)
 
Three months ended September 30, 2017
Details about accumulated other comprehensive income (loss)
 
Amounts reclassified from accumulated other comprehensive income (loss)1
 
Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities
 
$
1,337

 
Securities gains
 
 
(495
)
 
Income taxes
 
 
$
842

 
Net income
Amortization of defined benefit pension items
 
 
 
 
     Prior service costs
 
$
(53
)
 
Employee benefits
     Actuarial losses
 
(2,277
)
 
Employee benefits
 
 
(2,330
)
 
Employee benefits
 
 
864

 
Income taxes
 
 
$
(1,466
)
 
Net income
Total reclassifications for the period
 
$
(624
)
 
 
 
 
 
 
 
 
 
Three months ended September 30, 2016
Details about accumulated other comprehensive income (loss)
 
Amounts reclassified from accumulated other comprehensive income (loss)1
 
Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities
 
$
352

 
Securities gains
 
 
(191
)
 
Income taxes
 
 
$
161

 
Net income
Amortization of defined benefit pension items
 
 
 
 
     Prior service costs
 
$
(54
)
 
Employee benefits
     Actuarial losses
 
(1,714
)
 
Employee benefits
 
 
(1,768
)
 
Employee benefits
 
 
642

 
Income taxes
 
 
$
(1,126
)
 
Net income
Total reclassifications for the period
 
$
(965
)
 
 
 
 
 
 
 
 
 
Nine months ended September 30, 2017
Details about accumulated other comprehensive income (loss)
 
Amount reclassified from accumulated other comprehensive income (loss)1
 
Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities
 
$
4,664

 
Securities gains
 
 
(1,726
)
 
Income taxes
 
 
$
2,938

 
Net income
Amortization of defined benefit pension items
 
 
 
 
     Prior service costs
 
$
(158
)
 
Employee benefits
     Actuarial losses
 
(7,132
)
 
Employee benefits
 
 
(7,290
)
 
Employee benefits
 
 
2,702

 
Income taxes
 
 
$
(4,588
)
 
Net income
Total reclassifications for the period
 
$
(1,650
)
 
 
 
 
 
 
 
 
 
Nine months ended September 30, 2016
Details about accumulated other comprehensive income (loss)
 
Amount reclassified from accumulated other comprehensive income (loss)1
 
Affected line item in the statement where net income is presented
Unrealized gains and losses on available for sale securities
 
$
17,509

 
Securities gains
 
 
(6,583
)
 
Income taxes
 
 
$
10,926

 
Net income
Amortization of defined benefit pension items
 
 
 
 
     Prior service costs
 
$
(158
)
 
Employee benefits
     Actuarial losses
 
(5,144
)
 
Employee benefits
 
 
(5,302
)
 
Employee benefits
 
 
1,993

 
Income taxes
 
 
$
(3,309
)
 
Net income
Total reclassifications for the period
 
$
7,617

 
 
1 Amounts in parentheses indicate debits to profit/loss.