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Comprehensive Income
 6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Comprehensive Income
4. COMPREHENSIVE INCOME
The following tables detail the changes in the balances of each component of accumulated other comprehensive income for the affected periods:
 
 
Unrealized Gains
(Losses) on
Available for
Sale Securities (1)
 
Amortization of
Postretirement
Benefit (1)
 
Gain (Loss) on
Foreign Currency
Translation (1)
 
Credit Risk Changes of Fair Value Option Liabilities (1) (2)
 
Total
Three Months Ended June 30, 2018:
 
 
 
 
 
 
 
 
 
 
Beginning Balance
 
$
153,059

 
$
9,781

 
$
(61,578
)
 
$
(1,786
)
 
$
99,476

Other comprehensive income (loss) before reclassifications
 
46,709

 
—

 
(52,989
)
 
—

 
(6,280
)
Amounts reclassified from accumulated other comprehensive income (loss)
 
(46,134
)
 
(302
)
 
—

 
(906
)
 
(47,342
)
Net current period other comprehensive income (loss)
 
575

 
(302
)
 
(52,989
)
 
(906
)
 
(53,622
)
Balance at June 30, 2018
 
$
153,634

 
$
9,479

 
$
(114,567
)
 
$
(2,692
)
 
$
45,854

 
 
 
 
 
 
 
 
 
 
 
Three Months Ended June 30, 2017:
 
 
 
 
 
 
 
 
 
 
Beginning Balance
 
$
140,198

 
$
11,654

 
$
(154,627
)
 
$
—

 
$
(2,775
)
Other comprehensive income (loss) before reclassifications
 
15,070

 
—

 
29,292

 
—

 
44,362

Amounts reclassified from accumulated other comprehensive income (loss)
 
(2,421
)
 
(338
)
 
—

 
—

 
(2,759
)
Net current period other comprehensive income (loss)
 
12,649

 
(338
)
 
29,292

 
—

 
41,603

Balance at June 30, 2017
 
$
152,847

 
$
11,316

 
$
(125,335
)
 
$
—

 
$
38,828

 
 
 
 
 
 
 
 
 
 
 
Six Months Ended June 30, 2018:
 
 
 
 
 
 
 
 
 
 
Beginning Balance
 
$
30,755

 
$
10,640

 
$
(93,634
)
 
$
—

 
$
(52,239
)
Adjustment to opening balance, net of taxes (3)
 
—

 
—

 
—

 
(2,900
)
 
(2,900
)
Adjusted balance, beginning of period
 
30,755

 
10,640

 
(93,634
)
 
(2,900
)
 
(55,139
)
Other comprehensive income (loss) before reclassifications
 
173,576

 
(556
)
 
(20,933
)
 
—

 
152,087

Amounts reclassified from accumulated other comprehensive income (loss)
 
(50,697
)
 
(605
)
 
—

 
208

 
(51,094
)
Net current period other comprehensive income (loss)
 
122,879

 
(1,161
)
 
(20,933
)
 
208

 
100,993

Balance at June 30, 2018
 
$
153,634

 
$
9,479

 
$
(114,567
)
 
$
(2,692
)
 
$
45,854

 
 
 
 
 
 
 
 
 
 
 
Six Months Ended June 30, 2017:
 
 
 
 
 
 
 
 
 
 
Beginning Balance
 
$
118,863

 
$
9,367

 
$
(167,220
)
 
$
—

 
$
(38,990
)
Other comprehensive income (loss) before reclassifications
 
27,570

 
2,625

 
41,885

 
—

 
72,080

Amounts reclassified from accumulated other comprehensive income (loss)
 
6,414

 
(676
)
 
—

 
—

 
5,738

Net current period other comprehensive income (loss)
 
33,984

 
1,949

 
41,885

 
—

 
77,818

Balance at June 30, 2017
 
$
152,847

 
$
11,316

 
$
(125,335
)
 
$
—

 
$
38,828

(1)
All amounts are net of tax and noncontrolling interest. Amounts in parentheses indicate reductions to Accumulated Other Comprehensive Income.
(2)
Represents the changes in fair value attributable to instrument-specific credit risk of liabilities for which the fair value option is elected.
(3)
Beginning in 2018, Credit risk changes of fair value option liabilities are reflected as a component of Accumulated Other Comprehensive Income pursuant to the adoption of ASU 2016-01. See Note 2 to the Consolidated Financial Statements included in this Form 10-Q for further information regarding this change.
The following table details the significant amounts reclassified from each component of accumulated other comprehensive income, shown in the above rollforward tables, for the affected periods:
Details about Accumulated Other
Comprehensive Income Components
 
Amount Reclassified from Accumulated
Other Comprehensive Income (1)
 
Affected Line Item in the
Consolidated Statement of
Total Comprehensive Income (Loss)
 
Three Months Ended June 30,
 
 
2018
 
2017
 
Unrealized Gains (Losses) on Available-for-Sale Securities
 
 
 
 
 
 
 
 
$
(47,256
)
 
$
(2,421
)
 
Net realized investment gains (losses) and other-than-temporary impairment losses
 
 
1,122

 
—

 
Provision for income taxes
 
 
$
(46,134
)
 
$
(2,421
)
 
Net of tax and noncontrolling interest 
Amortization of Postretirement Benefit
 
 
 
 
 
 
Prior service cost
 
$
(241
)
 
$
(241
)
 
Other income (2)
Actuarial (losses)
 
(61
)
 
(97
)
 
Other income (2)
 
 
(302
)
 
(338
)
 
Total before tax
 
 
—

 
—

 
Provision for income taxes
 
 
(302
)
 
(338
)
 
Net of tax and noncontrolling interest
Credit risk changes of fair value option liabilities
 
 
 
 
 
 
 
 
$
(1,094
)
 
$
—

 
Credit Risk Changes of Fair Value Option Liabilities
 
 
188

 
—

 
Provision for income taxes
 
 
$
(906
)
 
$
—

 
Net of tax and noncontrolling interest
Total reclassifications for the period
 
$
(47,342
)
 
$
(2,759
)
 
Net of tax and noncontrolling interest 
 
 
 
 
 
 
 
Details about Accumulated Other
Comprehensive Income Components
 
Amount Reclassified from Accumulated
Other Comprehensive Income (1)
 
Affected Line Item in the
Consolidated Statement of
Total Comprehensive Income (Loss)
 
Six Months Ended June 30,
 
 
2018
 
2017
 
Unrealized Gains (Losses) on Available-for-Sale Securities
 
 
 
 
 
 
 
 
$
(50,111
)
 
$
6,414

 
Net realized investment (losses) gains and other-than-temporary impairment losses
 
 
(586
)
 
—

 
Tax (expense) benefit
 
 
$
(50,697
)
 
$
6,414

 
Net of tax and noncontrolling interest 
Amortization of Postretirement Benefit
 
 
 
 
 
 
Prior service cost
 
$
(482
)
 
$
(482
)
 
Other income (2)
Actuarial gains
 
(123
)
 
(194
)
 
Other income (2)
 
 
(605
)
 
(676
)
 
Total before tax
 
 
—

 
—

 
Tax (expense) benefit
 
 
$
(605
)
 
$
(676
)
 
Net of tax and noncontrolling interest 
Credit risk changes of fair value option liabilities
 
 
 
 
 
 
 
 
$
250

 
$
—

 
Credit Risk Changes of Fair Value Option Liabilities
 
 
(42
)
 
—

 
Provision for income taxes
 
 
$
208

 
$
—

 
Net of tax and noncontrolling interest
Total reclassifications for the period
 
$
(51,094
)
 
$
5,738

 
Net of tax and noncontrolling interest 
(1)
Amounts in parentheses indicate reductions to Accumulated Other Comprehensive Income with corresponding increases to the affected line items in the Consolidated Statement of Total Comprehensive Income.
(2)
These accumulated other comprehensive income components are included in the computation of net periodic benefit cost.