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Investments
12 Months Ended
Dec. 31, 2012
Investments [Abstract]  
Investments
Investments
(a) Net unrealized gains on investments included in OCI by asset class were as follows for the years ended December 31, 2012, 2011 and 2010
($ in thousands)
 
2012
 
2011
 
2010
AFS securities:
 
 

 
 

 
 

Fixed maturity securities
 
$
165,330

 
130,517

 
56,754

Equity securities
 
18,941

 
13,529

 
11,597

Total AFS securities
 
184,271

 
144,046

 
68,351

 
 
 
 
 
 
 
HTM securities:
 
 

 
 

 
 

Fixed maturity securities
 
3,926

 
5,566

 
14,523

Total HTM securities
 
3,926

 
5,566

 
14,523

 
 
 
 
 
 
 
Total net unrealized gains
 
188,197

 
149,612

 
82,874

Deferred income tax expense
 
(65,869
)
 
(52,364
)
 
(29,006
)
Net unrealized gains, net of deferred income tax
 
122,328

 
97,248

 
53,868

 
 
 
 
 
 
 
Increase in net unrealized gains in OCI, net of deferred income tax
 
$
25,080

 
43,380

 
24,529


 
(b) The carrying value, unrecognized holding gains and losses, and fair values of HTM fixed maturity securities were as follows: 
December 31, 2012
 
 
 
Net
 
 
 
 
 
 
 
 
 
 
 
 
Unrealized
 
 
 
Unrecognized
 
Unrecognized
 
 
 
 
Amortized
 
Gains
 
Carrying
 
Holding
 
Holding
 
Fair
($ in thousands)
 
Cost
 
(Losses)
 
Value
 
Gains
 
Losses
 
Value
Foreign government
 
$
5,292

 
212

 
5,504

 
367

 

 
5,871

Obligations of state and political subdivisions
 
491,180

 
6,769

 
497,949

 
28,996

 
(23
)
 
526,922

Corporate securities
 
38,285

 
(812
)
 
37,473

 
4,648

 

 
42,121

ABS
 
6,980

 
(1,052
)
 
5,928

 
1,170

 

 
7,098

CMBS
 
8,406

 
(1,191
)
 
7,215

 
5,434

 

 
12,649

Total HTM fixed maturity securities
 
$
550,143

 
3,926

 
554,069

 
40,615

 
(23
)
 
594,661


 
December 31, 2011
 
 
 
Net
 
 
 
 
 
 
 
 
 
 
 
 
Unrealized
 
 
 
Unrecognized
 
Unrecognized
 
 
 
 
Amortized
 
Gains
 
Carrying
 
Holding
 
Holding
 
Fair
($ in thousands)
 
Cost
 
(Losses)
 
Value
 
Gains
 
Losses
 
Value
Foreign government
 
$
5,292

 
292

 
5,584

 

 
(88
)
 
5,496

Obligations of state and political subdivisions
 
614,118

 
11,894

 
626,012

 
31,529

 
(156
)
 
657,385

Corporate securities
 
64,840

 
(2,189
)
 
62,651

 
6,887

 

 
69,538

ABS
 
8,077

 
(1,469
)
 
6,608

 
1,353

 
(7
)
 
7,954

CMBS
 
14,455

 
(2,962
)
 
11,493

 
6,177

 

 
17,670

Total HTM fixed maturity securities
 
$
706,782

 
5,566

 
712,348

 
45,946

 
(251
)
 
758,043



Unrecognized holding gains/losses of HTM securities are not reflected in the Financial Statements, as they represent fair value fluctuations from the later of: (i) the date a security is designated as HTM; or (ii) the date that an OTTI charge is recognized on an HTM security, through the date of the balance sheet. Our HTM securities had an average duration of 2.5 years as of December 31, 2012.
 
During 2012, 10 securities with a carrying value of $32.7 million in a net unrecognized gain position of $2.4 million were reclassified from the HTM category to AFS due to credit rating downgrades that occurred by either Moody’s Investors Service (“Moody’s”), Standard and Poor’s Financial Services (“S&P”), or Fitch Ratings (“Fitch”). These unexpected rating downgrades raised significant concerns about the issuers’ credit worthiness, which changed our intention to hold these securities to maturity. In addition to the transfer activity, redemptions and maturities of HTM securities in 2012 amounted to $118.3 million.

(c) The cost/amortized cost, fair values, and unrealized gains (losses) of AFS securities were as follows:
December 31, 2012
 
 
 
 
 
 
 
 
 
 
Cost/
 
 
 
 
 
 
 
 
Amortized
 
Unrealized
 
Unrealized
 
Fair
($ in thousands)
 
Cost
 
Gains
 
Losses
 
Value
U.S. government and government agencies
 
$
241,874

 
17,219

 
(1
)
 
259,092

Foreign government
 
28,813

 
1,540

 
(124
)
 
30,229

Obligations of states and political subdivisions
 
773,953

 
44,398

 
(327
)
 
818,024

Corporate securities
 
1,368,954

 
81,696

 
(402
)
 
1,450,248

ABS
 
126,330

 
2,319

 
(9
)
 
128,640

CMBS1
 
133,763

 
4,572

 
(1,216
)
 
137,119

RMBS2
 
456,996

 
15,961

 
(296
)
 
472,661

AFS fixed maturity securities
 
3,130,683

 
167,705

 
(2,375
)
 
3,296,013

AFS equity securities
 
132,441

 
19,400

 
(459
)
 
151,382

Total AFS securities
 
$
3,263,124

 
187,105

 
(2,834
)
 
3,447,395


 
December 31, 2011
 
 
 
 
 
 
 
 
 
 
Cost/
 
 
 
 
 
 
 
 
Amortized
 
Unrealized
 
Unrealized
 
Fair
($ in thousands)
 
Cost
 
Gains
 
Losses
 
Value
U.S. government and government agencies3
 
$
333,504

 
20,292

 

 
353,796

Foreign government
 
33,687

 
1,042

 
(556
)
 
34,173

Obligations of states and political subdivisions
 
578,214

 
44,491

 
(46
)
 
622,659

Corporate securities
 
1,168,439

 
50,167

 
(5,296
)
 
1,213,310

ABS
 
77,706

 
1,289

 
(46
)
 
78,949

CMBS1
 
107,838

 
6,427

 
(1,667
)
 
112,598

RMBS2
 
467,468

 
16,187

 
(1,767
)
 
481,888

AFS fixed maturity securities
 
2,766,856

 
139,895

 
(9,378
)
 
2,897,373

AFS equity securities
 
143,826

 
13,617

 
(88
)
 
157,355

Total AFS securities
 
$
2,910,682

 
153,512

 
(9,466
)
 
3,054,728


1 CMBS includes government guaranteed agency securities with a fair value of $48.9 million at December 31, 2012 and $72.9 million at December 31, 2011.
2 RMBS includes government guaranteed agency securities with a fair value of $91.0 million at December 31, 2012 and $98.2 million at December 31, 2011.
3 U.S. government includes corporate securities fully guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) with a fair value of $76.5 million at December 31, 2011.

Unrealized gains/losses of AFS securities represent fair value fluctuations from the later of: (i) the date a security is designated as AFS; or (ii) the date that an OTTI charge is recognized on an AFS security, through the date of the balance sheet. These unrealized gains and losses are recorded in AOCI on the Consolidated Balance Sheets.

(d) The following tables summarize, for all securities in a net unrealized/unrecognized loss position at December 31, 2012 and December 31, 2011, the fair value and gross pre-tax net unrealized/unrecognized loss by asset class and by length of time those securities have been in a net loss position:
December 31, 2012
 
Less than 12 months
 
12 months or longer
($ in thousands)
 
Fair 
Value
 
Unrealized
Losses1
 
Fair
Value
 
Unrealized
Losses1
AFS securities:
 
 

 
 

 
 

 
 

U.S. government and government agencies
 
$
518

 
(1
)
 

 

Foreign government
 

 

 
2,871

 
(124
)
Obligations of states and political subdivisions
 
32,383

 
(327
)
 

 

Corporate securities
 
50,880

 
(402
)
 

 

ABS
 
9,137

 
(9
)
 

 

CMBS
 
7,637

 
(19
)
 
11,830

 
(1,197
)
RMBS
 
8,710

 
(59
)
 
5,035

 
(237
)
Total fixed maturity securities
 
109,265

 
(817
)
 
19,736

 
(1,558
)
Equity securities
 
15,901

 
(459
)
 

 

Subtotal
 
$
125,166

 
(1,276
)
 
19,736

 
(1,558
)
 
 
 
Less than 12 months
 
12 months or longer
($ in thousands)
 
Fair
Value
 
Unrealized
Losses1
 
Unrecognized
Gains2
 
Fair
Value
 
Unrealized
Losses1
 
Unrecognized
Gains2
HTM securities:
 
 

 
 

 
 

 
 

 
 

 
 

Obligations of states and political subdivisions
 
$
1,218

 
(33
)
 
29

 
1,108

 
(47
)
 
38

ABS
 

 

 

 
2,860

 
(840
)
 
753

Subtotal
 
$
1,218

 
(33
)
 
29

 
3,968

 
(887
)
 
791

Total AFS and HTM
 
$
126,384

 
(1,309
)
 
29

 
23,704

 
(2,445
)
 
791


 
December 31, 2011
 
Less than 12 months
 
12 months or longer
($ in thousands)
 
Fair 
Value
 
Unrealized
Losses1
 
Fair
Value
 
Unrealized
Losses1
AFS securities:
 
 

 
 

 
 

 
 

Foreign government
 
$
8,299

 
(556
)
 

 

Obligations of states and political subdivisions
 
517

 
(1
)
 
1,740

 
(45
)
Corporate securities
 
157,510

 
(4,415
)
 
14,084

 
(881
)
ABS
 
15,808

 
(14
)
 
702

 
(32
)
CMBS
 
4,822

 
(48
)
 
14,564

 
(1,619
)
RMBS
 
29,803

 
(625
)
 
15,007

 
(1,142
)
Total fixed maturity securities
 
216,759

 
(5,659
)
 
46,097

 
(3,719
)
Equity securities
 
743

 
(88
)
 

 

Subtotal
 
$
217,502

 
(5,747
)
 
46,097

 
(3,719
)
 
 
 
Less than 12 months
 
12 months or longer
($ in thousands)
 
Fair
Value
 
Unrealized
Losses1
 
Unrecognized
Gains2
 
Fair
Value
 
Unrealized
Losses1
 
Unrecognized
Gains2
HTM securities:
 
 

 
 

 
 

 
 

 
 

 
 

Obligations of states and political subdivisions
 
$
7,244

 
(94
)
 
78

 
9,419

 
(519
)
 
324

ABS
 

 

 

 
2,816

 
(1,009
)
 
737

CMBS
 

 

 

 
2,794

 
(1,447
)
 
761

Subtotal
 
$
7,244

 
(94
)
 
78

 
15,029

 
(2,975
)
 
1,822

Total AFS and HTM
 
$
224,746

 
(5,841
)
 
78

 
61,126

 
(6,694
)
 
1,822


1 Gross unrealized losses include non-OTTI unrealized amounts and OTTI losses recognized in AOCI. In addition, this column includes remaining unrealized gain or loss amounts on securities that were transferred to an HTM designation in the first quarter of 2009 for those securities that are in a net unrealized/unrecognized loss position.
2 Unrecognized holding gains/(losses) represent fair value fluctuations from the later of: (i) the date a security is designated as HTM; or (ii) the date that an OTTI charge is recognized on an HTM security.

As evidenced by the table below, our unrealized/unrecognized loss positions improved by $7.7 million as of December 31, 2012 compared to last year as follows: 
($ in thousands)
 
 
December 31, 2012
 
December 31, 2011
Number of
Issues
 
% of 
Market/Book
 
Unrealized
Unrecognized
Loss
 
Number of
Issues
 
% of
Market/Book
 
Unrealized
Unrecognized
Loss
100

 
80% - 99%
 
$
2,701

 
140

 
80% - 99%
 
$
10,166

1

 
60% - 79%
 
233

 

 
60% - 79%
 


 
40% - 59%
 

 
1

 
40% - 59%
 
469


 
20% - 39%
 

 

 
20% - 39%
 


 
0% - 19%
 

 

 
0% - 19%
 

 

 
 
 
$
2,934

 
 

 
 
 
$
10,635


 
We have reviewed the securities in the tables above in accordance with our OTTI policy, as described in Note 2. “Summary of Significant Accounting Policies” of this Form 10-K.
 
At December 31, 2012, we had 101 securities in an aggregate unrealized/unrecognized loss position of $2.9 million, $1.7 million of which have been in a loss position for more than 12 months. Securities that have had non-credit OTTI impairments comprised $0.9 million of the $1.7 million balance. The remainder of the $1.7 million balance is related to securities that were on average 5% impaired compared to their amortized cost.
 
At December 31, 2011, we had 141 securities in an aggregate unrealized/unrecognized loss position of $10.6 million, $4.9 million of which have been in a loss position for more than 12 months. Non-credit OTTI impairments comprised $2.1 million of the $4.9 million, with the remainder related to securities that were on average 6% impaired compared to their amortized cost.

We do not have the intent to sell any securities in an unrealized/unrecognized loss position nor do we believe we will be required to sell these securities, and therefore we have concluded that they are temporarily impaired as of December 31, 2012. This conclusion reflects our current judgment as to the financial position and future prospects of the entity that issued the investment security and underlying collateral. If our judgment about an individual security changes in the future, we may ultimately record a credit loss after having originally concluded that one did not exist, which could have a material impact on our net income and financial position in future period.

(e) Fixed-maturity securities at December 31, 2012, by contractual maturity are shown below. MBS are included in the maturity tables using the estimated average life of each security. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
 
Listed below is a summary of HTM fixed maturity securities at December 31, 2012:
($ in thousands)
 
Carrying Value
 
Fair Value
Due in one year or less
 
$
103,671

 
108,524

Due after one year through five years
 
399,560

 
428,480

Due after five years through 10 years
 
44,255

 
49,635

Due after 10 years
 
6,583

 
8,022

Total HTM fixed maturity securities
 
$
554,069

 
594,661


 
Listed below is a summary of AFS fixed maturity securities at December 31, 2012:
($ in thousands)
 
Fair Value
Due in one year or less
 
$
359,291

Due after one year through five years
 
1,875,834

Due after five years through 10 years
 
1,026,073

Due after 10 years
 
34,815

Total AFS fixed maturity securities
 
$
3,296,013


 
(f) The following table outlines a summary of our other investment portfolio by strategy and the remaining commitment amount associated with each strategy:
Other Investments
 
Carrying Value
 
2012
 
 
December 31,
 
December 31,
 
Remaining
($ in thousands)
 
2012
 
2011
 
Commitment
Alternative Investments
 
 

 
 

 
 

Secondary private equity
 
$
28,032

 
30,114

 
7,592

Energy/power generation
 
18,640

 
25,913

 
8,692

Private equity
 
18,344

 
21,736

 
4,594

Distressed debt
 
12,728

 
16,953

 
2,916

Mezzanine financing
 
12,692

 
8,817

 
21,333

Real estate
 
11,751

 
13,767

 
10,381

Venture capital
 
7,477

 
7,248

 
400

Total alternative investments
 
109,664

 
124,548

 
55,908

Other securities
 
4,412

 
3,753

 
982

Total other investments
 
$
114,076

 
128,301

 
56,890


 
The following is a description of our alternative investment strategies:

Secondary Private Equity
This strategy purchases seasoned private equity funds from investors desiring liquidity prior to normal fund termination. Investments are made across all sectors of the private equity market, including leveraged buyouts, venture capital, distressed securities, mezzanine financing, real estate, and infrastructure.

Energy/Power Generation
This strategy invests primarily in cash flow generating assets in the coal, natural gas, power generation, and electric and gas transmission and distribution industries.
 
Private Equity
This strategy makes private equity investments, primarily in established large and middle market companies across diverse industries in North America, Europe, and Asia.
 
Distressed Debt
This strategy makes direct and indirect investments in debt and equity securities of companies that are experiencing financial and/or operational distress. Investments include buying indebtedness of bankrupt or financially troubled companies, small balance loan portfolios, special situations and capital structure arbitrage trades, commercial real estate mortgages and similar non-U.S. securities and debt obligations. This strategy also includes a fund of funds component.
 
The fund of funds component of our distressed debt strategy, which makes up approximately $7.8 million of our distressed debt strategy, encompasses a number of strategies that generally fall into one of the following broad categories:
 
Distressed Debt Funds – Trading-Focused
These funds focus on buying and selling debt of distressed companies (“Distressed Debt”).
 
Distressed Debt Funds – Restructuring-Focused
These funds focus on acquiring Distressed Debt with the intent of converting it into equity in a restructuring and taking control of the company.
 
Special Situations Funds
These funds pursue strategies that seek to take advantage of dislocations or opportunities in the market that are often related to, or are derivatives of, distressed investing. Special situations are often event-driven and characterized by complexity, market inefficiency, and excess risk premiums.
 
Private Equity Funds – Turnaround-Focused
These funds are a subset of private equity funds focused on investing in under-performing or distressed companies. These funds generally create value by acquiring the equity of these companies, in certain cases out of bankruptcy, and effecting operational turnarounds or financial restructuring.

Mezzanine Financing
This strategy provides privately negotiated fixed income securities, generally with an equity component, to leveraged buyout (“LBO”) firms and private and publicly traded large, mid and small-cap companies to finance LBOs, recapitalizations, and acquisitions.
 
Real Estate
This strategy invests opportunistically in real estate in North America, Europe, and Asia via direct property ownership, joint ventures, mortgages, and investments in equity and debt instruments.
 
Venture Capital
In general, these investments are venture capital investments made principally by investing in equity securities of privately held corporations, for long-term capital appreciation. This strategy also makes private equity investments in growth equity and buyout partnerships.

Our seven alternative investment strategies employ low or moderate levels of leverage and generally use hedging only to reduce foreign exchange or interest rate volatility. At this time, our alternative investment strategies do not include hedge funds. We cannot redeem our investments with the general partners of these investments; however, occasionally these partnerships can be traded on the secondary market. Once liquidation is triggered by clauses within the limited partnership agreements or at the funds’ stated end date, we will receive our final allocation of capital and any earned appreciation of the underlying investments, assuming we have not divested ourselves of our partnership interests prior to that time. We currently receive distributions from these alternative investments through the realization of the underlying investments in the limited partnerships. We anticipate that the general partners of these alternative investments will liquidate their underlying investment portfolios through 2022.
 
The following tables set forth summarized financial information for our investments that are accounted for under the equity method, which are primarily alternative investments. This information is presented in the aggregate for our other investment portfolio. Since the majority of these investments report results to us on a quarter lag, the summarized financial statement information is as of, and for the 12-month period ended, September 30: 
Balance Sheet Information
 
 
 
 
September 30,
 
 
 
 
($ in millions)
 
2012
 
2011
Investments
 
$
12,214

 
13,553

Total assets
 
12,912

 
14,253

Total liabilities
 
657

 
1,105

Partners’ capital
 
12,255

 
13,148


  
Income Statement Information
 
 
 
 
 
 
12 months ended September 30,
 
 
 
 
 
 
($ in millions)
 
2012
 
2011
 
2010
Net investment income
 
$
226

 
564

 
563

Realized gains (losses)
 
1,015

 
893

 
(358
)
Net change in unrealized (depreciation) appreciation 
 
(100
)
 
1,485

 
2,250

Net income
 
$
1,141

 
2,942

 
2,455

 
 
 
 
 
 
 
Insurance Subsidiaries' other investments income 
 
9

 
21

 
20


 
(g) At December 31, 2012, we had 32 fixed maturity securities, with a carrying value of $59.3 million, that were pledged as collateral for our outstanding borrowing of $58 million with the FHLBI. This outstanding borrowing is included in “Notes payable” on our Consolidated Balance Sheets.  In accordance with the terms of our agreement with the FHLBI, we retain all rights regarding these securities, which are included in the “U.S. government and government agencies,” “RMBS,” and “CMBS” classifications of our AFS fixed maturity securities portfolio.

In addition, certain bonds with a carrying value of $23.3 million were on deposit with various state and regulatory agencies to comply with insurance laws. We retain all rights regarding these securities, which are primarily included in the "U.S. government and government agencies" classification of our HTM fixed maturity securities portfolio.
 
(h) The components of net investment income earned were as follows:
 
($ in thousands)
 
2012
 
2011
 
2010
Fixed maturity securities
 
$
124,687

 
129,710

 
130,990

Equity securities, dividend income
 
6,215

 
4,535

 
2,238

Short-term investments
 
151

 
160

 
437

Other investments
 
8,996

 
20,539

 
20,313

Miscellaneous income
 

 
133

 
139

Investment expenses
 
(8,172
)
 
(7,634
)
 
(8,409
)
Net investment income earned
 
$
131,877

 
147,443

 
145,708



The $15.6 million decrease in investment income before tax when compared to the prior year was primarily attributable to a decrease in income of $10.3 million from alternative investments within our other investments portfolio. This decrease in alternative investment income was primarily in the energy and private equity sectors, including the secondary markets. Fixed maturity securities income also decreased by $5.0 million, mainly due to lower reinvestment yields in 2012 when compared to 2011. In 2012, bonds that matured or were sold, valued at $658.3 million, had yields that averaged 3.7%, pre-tax, while new purchases of $892.6 million had an average yield of 2.2%.

While net investment income remained relatively flat in 2011 compared to 2010, its components reflect increased dividend income from the high dividend yield equities strategy that we implemented during 2011 partially offset by lower yields on our fixed maturity securities. In 2011, bonds that matured or were sold, valued at $481.9 million, had yields that averaged 3.8%, pre-tax, while new purchases of $490.8 million had an average yield of 2.7%.
 
(i) The following tables summarize OTTI by asset type for the periods indicated:

2012
 
 
 
 
 
Recognized in
($ in thousands)
 
Gross
 
Included in OCI
 
Earnings
Fixed maturity securities
 
 

 
 

 
 

ABS
 
$
98

 

 
98

CMBS
 
(1,525
)
 
(2,335
)
 
810

RMBS
 
(35
)
 
(218
)
 
183

Total fixed maturity securities
 
(1,462
)
 
(2,553
)
 
1,091

Equity securities
 
3,173

 

 
3,173

OTTI losses
 
$
1,711

 
(2,553
)
 
4,264


2011
 
 
 
 
 
Recognized in
($ in thousands)
 
Gross
 
Included in OCI
 
Earnings
Fixed maturity securities
 
 

 
 

 
 

Obligations of state and political subdivisions
 
$
17

 

 
17

Corporate securities
 
244

 

 
244

ABS
 
175

 
(546
)
 
721

CMBS
 
(149
)
 
(843
)
 
694

RMBS
 
346

 
201

 
145

Total fixed maturity securities
 
633

 
(1,188
)
 
1,821

Equity securities
 
11,365

 

 
11,365

OTTI losses
 
$
11,998

 
(1,188
)
 
13,186

2010
 
 
 
 
 
Recognized in
($ in thousands)
 
Gross
 
Included in OCI
 
Earnings
Fixed maturity securities
 
 

 
 

 
 

Obligations of state and political subdivisions
 
$
197

 

 
197

ABS
 
(20
)
 
(179
)
 
159

CMBS
 
5,552

 
(863
)
 
6,415

RMBS
 
7,953

 
(391
)
 
8,344

Total fixed maturity securities
 
13,682

 
(1,433
)
 
15,115

Equity securities
 
2,543

 

 
2,543

OTTI losses
 
$
16,225

 
(1,433
)
 
17,658


 
OTTI losses in 2012 and 2011 were primarily comprised of charges on our equity portfolio. In 2012, $1.0 million related to securities that we do not believe will recover in the near term and $2.2 million related to securities for which we had the intent to sell. In 2011, $8.5 million related to securities that we do not believe will recover in the near term and $2.9 million related to securities for which we had the intent to sell.

OTTI charges in 2010 were compromised of the following:

$8.3 million of RMBS credit OTTI charges were largely driven by impairments on two securities in the first quarter of 2010 that we intended to sell. We sold these securities in the second quarter of 2010. The remaining charges related to securities that experienced declines in the related cash flows of their underlying collateral. Based on our analysis, we did not believe it was probable that we would receive all contractual cash flows for these securities.

$6.4 million of CMBS credit OTTI charges. These charges were due to reductions in the related cash flows of the underlying collateral of these securities. These charges were primarily associated with securities that had been previously impaired but, over time, had shown little, if any, improvement in valuations, poor net operating income performance of the underlying properties, and, in some cases, an increase in over 60-day delinquency rates. These securities had, on average, unrealized/unrecognized loss positions of more than 60% of their amortized cost. Based on our DCF analysis, we did not believe it was probable that we would receive all contractual cash flows for these securities.

The following table sets forth, for the periods indicated, credit loss impairments on fixed maturity securities for which a portion of the OTTI charge was recognized in OCI, and the corresponding changes in such amounts:
($ in thousands)
 
2012
 
2011
 
2010
Balance, beginning of year
 
$
6,602

 
17,723

 
22,189

Credit losses remaining in retained earnings after adoption of OTTI accounting guidance
 

 

 

Addition for the amount related to credit loss for which an OTTI was not previously recognized
 

 

 
2,326

Reductions for securities sold during the period
 

 

 
(2,990
)
Reductions for securities for which the amount previously recognized in OCI was recognized in earnings because of intention or potential requirement to sell before recovery of amortized cost
 

 

 

Reductions for securities for which the entire amount previously recognized in OCI was recognized in earnings due to a decrease in cash flows expected
 

 
(11,672
)
 
(8,143
)
Additional increases to the amount related to credit loss for which an OTTI was previously recognized
 
875

 
551

 
4,341

Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected
 

 

 

Balance, end of year
 
$
7,477

 
6,602

 
17,723


 
(j) The components of net realized gains (losses), excluding OTTI charges, were as follows:
($ in thousands)
 
2012
 
2011
 
2010
HTM fixed maturity securities
 
 

 
 

 
 

Gains
 
$
194

 
4

 
569

Losses
 
(217
)
 
(564
)
 
(894
)
AFS fixed maturity securities
 
 

 
 

 
 

Gains
 
4,452

 
9,385

 
8,161

Losses
 
(472
)
 
(70
)
 
(7,619
)
AFS equity securities
 
 

 
 

 
 

Gains
 
10,901

 
6,671

 
16,698

Losses
 
(1,205
)
 

 
(1,156
)
Short-term investments
 
 
 
 
 
 
Losses
 
(2
)
 

 

Other investments
 
 

 
 

 
 

Gains
 
1

 

 

Losses
 
(400
)
 

 
(5,184
)
Total other net realized investment gains
 
13,252

 
15,426

 
10,575

Total OTTI charges recognized in earnings
 
(4,264
)
 
(13,186
)
 
(17,658
)
Total net realized gains (losses)
 
$
8,988

 
2,240

 
(7,083
)


Realized gains and losses on the sale of investments are determined on the basis of the cost of the specific investments sold. Proceeds from the sale of AFS securities were $205.3 million in 2012, $206.5 million during 2011, and $288.5 million during 2010. Net realized gains in 2012, excluding OTTI charges, were driven by: (i) calls and maturities; and (ii) the sale of AFS equity securities related to reallocations within the high-dividend yield portfolio.

Net realized gains in 2011, excluding OTTI charges, were driven by: (i) calls and maturities; (ii) the sale of AFS fixed maturity securities, primarily corporate, municipal, and government holdings; and (iii) the sale of AFS equity securities to facilitate the reallocation of the equity portfolio to a high-dividend yield strategy.

Realized gains in 2010 were driven by: (i) the sale of energy-focused AFS equity securities to mitigate portfolio risk and sector exposure; and (ii) the sale of AFS fixed maturity and equity securities associated with tax planning strategies. These gains were largely offset by realized losses on certain AFS fixed maturity securities that we sold in the second quarter of 2010 following an initial review of the portfolio by our investment managers who were put in place in 2010. The managers’ sale recommendations were due to ongoing credit concerns of the underlying investments coupled with strategically positioning the portfolio to generate maximum yield while balancing risk objectives. Realized losses in our other investment portfolio was due to the fourth quarter 2010 sale of certain limited partnerships in the secondary market, which reduced our exposure in the mezzanine financing, private equity, secondary private equity, and real estate sectors of our alternative investment portfolio.