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Fair Value (Tables)
3 Months Ended
Mar. 31, 2013
Fair Value Disclosures [Abstract]  
Fair value hierarchy
The following table presents the Company’s financial assets and liabilities measured at fair value by level at March 31, 2013:
 
 
 
 
Fair Value Measurement Using:
 
Fair
Value
 
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Assets measured at fair value:
 

 
 

 
 

 
 

Available for sale securities:
 

 
 

 
 

 
 

Fixed maturities and fixed maturities pledged under securities lending agreements (1):
 

 
 

 
 

 
 

Corporate bonds
$
2,592,744

 
$

 
$
2,495,446

 
$
97,298

Mortgage backed securities
1,704,813

 

 
1,704,813

 

Municipal bonds
1,442,116

 

 
1,442,116

 

Commercial mortgage backed securities
867,856

 

 
867,856

 

U.S. government and government agencies
1,151,429

 
1,151,429

 

 

Non-U.S. government securities
1,074,797

 

 
1,074,797

 

Asset backed securities
1,146,611

 

 
1,146,611

 

Total
9,980,366

 
1,151,429

 
8,731,639

 
97,298

 
 
 
 
 
 
 
 
Equity securities
342,091

 
340,798

 
1,293

 

Other investments
585,277

 

 
399,342

 
185,935

Short-term investments
944,274

 
896,774

 
47,500

 

 
 
 
 
 
 
 
 
Fair value option:
 

 
 

 
 

 
 

Investments accounted for using the fair value option:
 

 
 

 
 

 
 

Corporate bonds
291,922

 

 
291,922

 

Non-U.S. government bonds
72,463

 

 
72,463

 

Other investments
537,845

 

 
358,475

 
179,370

Equity securities

 

 

 

Total
902,230

 

 
722,860

 
179,370

 
 
 
 
 
 
 
 
Total assets measured at fair value
$
12,754,238

 
$
2,389,001

 
$
9,902,634

 
$
462,603

 
 
 
 
 
 
 
 
Liabilities measured at fair value:
 

 
 

 
 

 
 

Fair value option:
 

 
 

 
 

 
 

Securities sold but not yet purchased (2) 
$

 
$

 
$

 
$

Total liabilities measured at fair value
$

 
$

 
$

 
$

_________________________________________________
(1)
In securities lending transactions, the Company receives collateral in excess of the fair value of the fixed maturities and short-term investments pledged. For purposes of this table, the Company has excluded the collateral received and reinvested and included the fixed maturities and short-term investments pledged.
(2)
Represents the Company’s obligation to deliver securities that it did not own at the time of sale. Such amounts are included in “other liabilities” on the Company’s consolidated balance sheets.

 
The following table presents the Company’s financial assets and liabilities measured at fair value by level at December 31, 2012:
 
 
 
 
Fair Value Measurement Using:
 
Fair
Value
 
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Assets measured at fair value:
 

 
 

 
 

 
 

Available for sale securities:
 

 
 

 
 

 
 

Fixed maturities and fixed maturities pledged under securities lending agreements (1):
 

 
 

 
 

 
 

Corporate bonds
$
2,857,513

 
$

 
$
2,759,109

 
$
98,404

Mortgage backed securities
1,532,736

 

 
1,532,736

 

Municipal bonds
1,463,586

 

 
1,463,586

 

Commercial mortgage backed securities
824,165

 

 
824,165

 

U.S. government and government agencies
1,131,688

 
1,131,688

 

 

Non-U.S. government securities
998,901

 

 
998,901

 

Asset backed securities
1,073,999

 

 
1,073,999

 

Total
9,882,588

 
1,131,688

 
8,652,496

 
98,404

 
 
 
 
 
 
 
 
Equity securities
312,749

 
312,666

 
83

 

Other investments
549,280

 

 
365,078

 
184,202

Short-term investments
730,369

 
678,441

 
51,928

 

 
 
 
 
 
 
 
 
Fair value option:
 

 
 

 
 

 
 

Investments accounted for using the fair value option:
 

 
 

 
 

 
 

Corporate bonds
275,132

 

 
275,132

 

Non-U.S. government bonds
88,409

 

 
88,409

 

Other investments
527,971

 

 
332,621

 
195,350

Equity securities
25,954

 
25,954

 

 

Total
917,466

 
25,954

 
696,162

 
195,350

 
 
 
 
 
 
 
 
Total assets measured at fair value
$
12,392,452

 
$
2,148,749

 
$
9,765,747

 
$
477,956

 
 
 
 
 
 
 
 
Liabilities measured at fair value:
 

 
 

 
 

 
 

Fair value option:
 

 
 

 
 

 
 

Securities sold but not yet purchased (2)
$
6,924

 
$
6,924

 
$

 
$

Total liabilities measured at fair value
$
6,924

 
$
6,924

 
$

 
$

_________________________________________________
(1)
In securities lending transactions, the Company receives collateral in excess of the fair value of the fixed maturities and short-term investments pledged. For purposes of this table, the Company has excluded the collateral received and reinvested and included the fixed maturities and short-term investments pledged.
(2)
Represents the Company’s obligation to deliver securities that it did not own at the time of sale. Such amounts are included in “other liabilities” on the Company’s consolidated balance sheets.
Rollforward of Level 3 investments
The following table presents a reconciliation of the beginning and ending balances for all investments measured at fair value on a recurring basis using Level 3 inputs for the 2013 first quarter and 2012 first quarter:
 
 
Fair Value Measurements Using:
Significant Unobservable Inputs (Level 3)
s
Available-For-Sale
 
Fair Value Option
 
 
 
Corporate
Bonds
 
Other
Investments
 
Other
Investments
 
Total
Three Months Ended March 31, 2013
 

 
 
 
 

 
 

Balance at beginning of period
$
98,404

 
$
184,202

 
$
195,350

 
$
477,956

Total gains or (losses) (realized/unrealized)
 

 
 
 
 

 
 

Included in earnings (1)
1,492

 
4,762

 
373

 
6,627

Included in other comprehensive income
(1,688
)
 
1,912

 

 
224

Purchases, issuances, sales and settlements
 

 
 
 
 

 
 

Purchases

 
5,000

 
41,654

 
46,654

Issuances

 

 

 

Sales

 

 

 

Settlements
(910
)
 
(9,942
)
 
(58,007
)
 
(68,859
)
Transfers in and/or out of Level 3

 

 

 

Balance at end of period
$
97,298

 
$
185,934

 
$
179,370

 
$
462,602

 
 
 
 
 
 
 
 
Three Months Ended March 31, 2012
 

 
 
 
 

 
 

Balance at beginning of period
$
92,091

 
$
5,124

 
$

 
$
97,215

Total gains or (losses) (realized/unrealized)
 

 
 
 
 

 
 

Included in earnings (1)
2,331

 
81

 

 
2,412

Included in other comprehensive income
2,273

 
1,091

 

 
3,364

Purchases, issuances, sales and settlements
 

 
 
 
 

 
 

Purchases

 

 

 

Issuances

 

 

 

Sales

 

 

 

Settlements
(40
)
 
(81
)
 

 
(121
)
Transfers in and/or out of Level 3

 

 

 

Balance at end of period
$
96,655

 
$
6,215

 
$

 
$
102,870

_________________________________________________
(1)
Gains or losses on corporate bonds were included in net realized gains (losses) while gains or losses on other investments were recorded in net realized gains (losses) or net investment income.