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Accumulated Other Comprehensive Income (Loss)
 3 Months Ended
Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Note 11.  Accumulated Other Comprehensive Income (Loss)
 
Changes in accumulated other comprehensive income ("AOCI") (loss) by component, including amounts reclassified to other comprehensive income ("OCI") (loss) and the related line item in the Statements of Operations where net income is presented, are as follows:
 
 
Three months ended
 
Three months ended
 
 
March 31, 2018
 
March 31, 2017
(in thousands)
 
Before Tax
Income Tax (1)
Net
 
Before Tax
Income Tax (1)
Net
Investment securities:
 
 
 
 
 
 
 
 
AOCI, beginning of period
 
$
3,410

$
716

$
2,694

 
$
3,954

$
1,384

$
2,570

OCI before reclassifications
 
(7,130
)
(1,497
)
(5,633
)
 
2,640

924

1,716

Realized investment losses (gains)
 
345

72

273

 
(422
)
(148
)
(274
)
Impairment losses
 
0

0

0

 
121

42

79

Cumulative effect of adopting ASU 2016-01 (2)
 
(85
)
(18
)
(67
)
 
—

—

—

OCI (loss)
 
(6,870
)
(1,443
)
(5,427
)
 
2,339

818

1,521

AOCI, end of period
 
$
(3,460
)
$
(727
)
$
(2,733
)
 
$
6,293

$
2,202

$
4,091

 
 
 
 
 
 
 
 
 
Pension and other postretirement plans: (3)
 
 
 
 
 
 
 
 
AOCI (loss), beginning of period
 
$
(200,954
)
$
(42,201
)
$
(158,753
)
 
$
(190,695
)
$
(66,744
)
$
(123,951
)
AOCI (loss), end of period
 
$
(200,954
)
$
(42,201
)
$
(158,753
)
 
$
(190,695
)
$
(66,744
)
$
(123,951
)
 
 
 
 
 
 
 
 
 
Total
 
 
 
 
 
 
 
 
AOCI (loss), beginning of period
 
$
(197,544
)
$
(41,485
)
$
(156,059
)
 
$
(186,741
)
$
(65,360
)
$
(121,381
)
Investment securities
 
(6,870
)
(1,443
)
(5,427
)
 
2,339

818

1,521

Pension and other postretirement plans
 
0

0

0

 
0

0

0

OCI (loss)
 
(6,870
)
(1,443
)
(5,427
)
 
2,339

818

1,521

AOCI (loss), end of period
 
$
(204,414
)
$
(42,928
)
$
(161,486
)
 
$
(184,402
)
$
(64,542
)
$
(119,860
)
 
(1)
Deferred taxes were recognized at the corporate rate of 21% and 35% for the three months ended March 31, 2018 and 2017, respectively.
(2)
ASU 2016-01 required a reclassification of unrealized losses of equity securities from AOCI to retained earnings at January 1, 2018. See Note 2, "Significant Accounting Policies".
(3)
There are no comprehensive income items or amounts reclassified out of accumulated other comprehensive loss related to postretirement plan items during interim periods.