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FAIR VALUE MEASUREMENTS (TABLES)
3 Months Ended
Mar. 31, 2016
Fair Value Disclosures [Abstract]  
FINANCIAL INSTRUMENTS MEASURED AT FAIR VALUE ON A RECURRING BASIS
The tables below present the financial instruments measured at fair value on a recurring basis for the periods indicated:
 
 
Quoted Prices in Active Markets for Identical Assets (Level 1)
 
Significant Other Observable Inputs (Level 2)
 
Significant Unobservable Inputs (Level 3)
 
Fair value based on NAV practical expedient
 
Total Fair Value
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At March 31, 2016
 
 
 
 
 
 
 
 
 
 
 
Assets
 
 
 
 
 
 
 
 
 
 
 
Fixed maturities
 
 
 
 
 
 
 
 
 
 
 
U.S. government and agency
$
1,503,841

 
$
66,339

 
$

 
$

 
$
1,570,180

 
 
Non-U.S. government

 
720,723

 

 

 
720,723

 
 
Corporate debt

 
4,384,792

 
40,250

 

 
4,425,042

 
 
Agency RMBS

 
2,421,301

 

 

 
2,421,301

 
 
CMBS

 
1,096,133

 
10,551

 

 
1,106,684

 
 
Non-Agency RMBS

 
95,022

 

 

 
95,022

 
 
ABS

 
1,343,150

 

 

 
1,343,150

 
 
Municipals

 
155,966

 

 

 
155,966

 
 
 
1,503,841

 
10,283,426

 
50,801

 

 
11,838,068

 
 
Equity securities
 
 
 
 
 
 
 
 
 
 
 
Common stocks
178

 

 

 

 
178

 
 
Exchange-traded funds
500,668

 

 

 

 
500,668

 
 
Bond mutual funds

 
136,479

 

 

 
136,479

 
 
 
500,846

 
136,479

 

 

 
637,325

 
 
Other investments
 
 
 
 
 
 
 
 
 
 
 
Hedge funds

 

 

 
587,206

 
587,206

 
 
Direct lending funds

 

 

 
112,889

 
112,889

 
 
Private equity funds

 

 

 
93,783

 
93,783

 
 
Real estate funds

 

 

 
5,390

 
5,390

 
 
CLO - Equities

 

 
60,371

 

 
60,371

 
 
 

 

 
60,371

 
799,268

 
859,639

 
 
Short-term investments

 
29,540

 

 

 
29,540

 
 
Other assets
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments (see Note 5)

 
5,980

 
5,977

 

 
11,957

 
 
Insurance-linked securities

 

 
24,916

 

 
24,916

 
 
Strategic investments

 

 
36,712

 

 
36,712

 
 
Total Assets
$
2,004,687

 
$
10,455,425

 
$
178,777

 
$
799,268

 
$
13,438,157

 
 
Liabilities
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments (see Note 5)
$

 
$
6,841

 
$
15,028

 
$

 
$
21,869

 
 
Cash settled awards (see Note 7)

 
22,101

 

 

 
22,101

 
 
 Total Liabilities
$

 
$
28,942

 
$
15,028

 
$

 
$
43,970

 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
Quoted Prices in Active Markets for Identical Assets (Level 1)
 
Significant Other Observable Inputs (Level 2)
 
Significant Unobservable Inputs (Level 3)
 
Fair value based on NAV practical expedient
 
Total Fair Value
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
Assets
 
 
 
 
 
 
 
 
 
 
 
Fixed maturities
 
 
 
 
 
 
 
 
 
 
 
U.S. government and agency
$
1,632,355

 
$
19,594

 
$

 
$

 
$
1,651,949

 
 
Non-U.S. government

 
739,005

 

 

 
739,005

 
 
Corporate debt

 
4,324,251

 
38,518

 

 
4,362,769

 
 
Agency RMBS

 
2,249,236

 

 

 
2,249,236

 
 
CMBS

 
1,072,376

 
10,922

 

 
1,083,298

 
 
Non-Agency RMBS

 
101,008

 

 

 
101,008

 
 
ABS

 
1,371,270

 

 

 
1,371,270

 
 
Municipals

 
161,214

 

 

 
161,214

 
 
 
1,632,355

 
10,037,954

 
49,440

 

 
11,719,749

 
 
Equity securities
 
 
 
 
 
 
 
 
 
 
 
Common stocks

 

 

 

 

 
 
Exchange-traded funds
473,973

 

 

 

 
473,973

 
 
Bond mutual funds

 
124,025

 

 

 
124,025

 
 
 
473,973

 
124,025

 

 

 
597,998

 
 
Other investments
 
 
 
 
 
 
 
 
 
 
 
Hedge funds

 

 

 
656,773

 
656,773

 
 
Direct lending funds

 

 

 
90,120

 
90,120

 
 
Private equity funds

 

 

 

 

 
 
Real estate funds

 

 

 
4,929

 
4,929

 
 
CLO - Equities

 

 
27,257

 
37,677

 
64,934

 
 
 

 

 
27,257

 
789,499

 
816,756

 
 
Short-term investments

 
34,406

 

 

 
34,406

 
 
Other assets
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments (see Note 5)

 
2,072

 
4,395

 

 
6,467

 
 
Insurance-linked securities

 

 
24,925

 

 
24,925

 
 
Strategic investments

 

 

 

 

 
 
Total Assets
$
2,106,328

 
$
10,198,457

 
$
106,017

 
$
789,499

 
$
13,200,301

 
 
Liabilities
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments (see Note 5)
$

 
$
7,692

 
$
10,937

 
$

 
$
18,629

 
 
Cash settled awards (see Note 7)

 
33,215

 

 

 
33,215

 
 
Total Liabilities
$

 
$
40,907

 
$
10,937

 
$

 
$
51,844

 
 
 
 
 
 
 
 
 
 
 
 
 
LEVEL 3 FAIR VALUE MEASUREMENT INPUTS
Except for hedge funds, direct lending funds, private equity funds and real estate funds priced using NAV as a practical expedient and certain fixed maturities and insurance-linked securities priced using broker-dealer quotes (underlying inputs are not available), the following table quantifies the significant unobservable inputs we have used in estimating fair value at March 31, 2016 for our investments classified as Level 3 in the fair value hierarchy.
 
 
Fair Value
Valuation Technique
Unobservable Input
Range
Weighted
Average
 
 
 
 
 
 
 
 
 
 
Other investments - CLO - Equities
$
39,616

Discounted cash flow
Default rates
4.0%
4.0%
 
 
 
 
 
Loss severity rate
35.0% - 53.5%
36.5%
 
 
 
 
 
Collateral spreads
3.2% - 4.0%
3.9%
 
 
 
 
 
Estimated maturity dates
3 - 7 years
7 years
 
 
 
 
 
 
 
 
 
 
 
20,755

Liquidation value
Fair value of collateral
100%
100%
 
 
 
 
 
Discount margin
0.7% - 25.9%
5.5%
 
 
 
 
 
 
 
 
 
 
Derivatives - Weather derivatives, net
$
(9,051
)
Simulation model
Weather curve
1 - 2331(1)
n/a (2)
 
 
 
 
 
Weather standard deviation
1 - 165(1)
n/a (2)
 
 
 
 
 
 
 
 
 
(1) Measured in Heating Degree Days ("HDD") which is the number of degrees the daily temperature is below a reference temperature. The cumulative HDD for the duration of the derivatives contract is compared to the strike value to determine the necessary settlement.
(2)
Due to the diversity of the portfolio, the range of unobservable inputs can be widespread; therefore, presentation of a weighted average is not useful. Weather parameters may include various temperature and/or precipitation measures that will naturally vary by geographic location of each counterparty's operations.

CHANGES IN LEVEL 3 FINANCIAL INSTRUMENTS MEASURED AT FAIR VALUE ON A RECURRING BASIS
The following tables present changes in Level 3 for financial instruments measured at fair value on a recurring basis for the periods indicated:
 
 
Opening
Balance
 
Transfers
into
Level 3
 
Transfers
out of
Level 3
 
Included in
earnings (1)
 
Included
in OCI (2)
 
Purchases
 
Sales
 
Settlements/
Distributions
 
Closing
Balance
 
Change in
unrealized
investment
gain/(loss) (3)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Three months ended March 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fixed maturities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corporate debt
$
38,518

 
$

 
$
(1,955
)
 
$
2

 
$
(76
)
 
$
5,821

 
$
(1,910
)
 
$
(150
)
 
$
40,250

 
$

 
 
CMBS
10,922

 

 

 

 
(144
)
 

 

 
(227
)
 
10,551

 

 
 
ABS

 

 

 

 

 

 

 

 

 

 
 
 
49,440

 

 
(1,955
)
 
2

 
(220
)
 
5,821

 
(1,910
)
 
(377
)
 
50,801

 

 
 
Other investments
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CLO - Equities
27,257

 
36,378

 

 
(1,016
)
 

 

 

 
(2,248
)
 
60,371

 
(1,016
)
 
 
 
27,257

 
36,378

 

 
(1,016
)
 

 

 

 
(2,248
)
 
60,371

 
(1,016
)
 
 
Other assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments
4,395

 

 

 
2,948

 

 
1,359

 

 
(2,725
)
 
5,977

 
1,479

 
 
Insurance-linked securities
24,925

 

 

 
(9
)
 

 

 

 

 
24,916

 
(9
)
 
 
Strategic investments

 

 

 

 

 
36,712

 

 

 
36,712

 

 
 
 
29,320

 

 

 
2,939

 

 
38,071

 

 
(2,725
)
 
67,605

 
1,470

 
 
Total assets
$
106,017

 
$
36,378

 
$
(1,955
)
 
$
1,925

 
$
(220
)
 
$
43,892

 
$
(1,910
)
 
$
(5,350
)
 
$
178,777

 
$
454

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
Other liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments
$
10,937

 
$

 
$

 
$
3,423

 
$

 
$
(1,025
)
 
$

 
$
1,693

 
$
15,028

 
$
3,682

 
 
Total liabilities
$
10,937

 
$

 
$

 
$
3,423

 
$

 
$
(1,025
)
 
$

 
$
1,693

 
$
15,028

 
$
3,682

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening
Balance
 
Transfers
into
Level 3
 
Transfers
out of
Level 3
 
Included in
earnings (1)
 
Included
in OCI (2)
 
Purchases
 
Sales
 
Settlements/
Distributions
 
Closing
Balance
 
Change in
unrealized
investment
gain/(loss) (3)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Three months ended March 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fixed maturities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corporate debt
$
15,837

 
$

 
$

 
$

 
$
180

 
$
10,910

 
$

 
$
(70
)
 
$
26,857

 
$

 
 
CMBS
17,763

 

 

 

 
(204
)
 

 

 
(498
)
 
17,061

 

 
 
ABS
40,031

 

 

 

 
62

 

 

 
(172
)
 
39,921

 

 
 
 
73,631

 

 

 

 
38

 
10,910

 

 
(740
)
 
83,839

 

 
 
Other investments
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CLO - Equities
37,046

 

 

 
3,530

 

 

 

 
(3,616
)
 
36,960

 
3,530

 
 
 
37,046

 

 

 
3,530

 

 

 

 
(3,616
)
 
36,960

 
3,530

 
 
Other assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments
111

 

 

 
(1,067
)
 

 

 

 
956

 

 

 
 
Insurance-linked securities

 

 

 

 

 
25,000

 

 

 
25,000

 

 
 
Strategic investments

 

 

 

 

 

 

 

 

 

 
 
 
111

 

 

 
(1,067
)
 

 
25,000

 

 
956

 
25,000

 

 
 
Total assets
$
110,788

 
$

 
$

 
$
2,463

 
$
38

 
$
35,910

 
$

 
$
(3,400
)
 
$
145,799

 
$
3,530

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative instruments
$
15,288

 
$

 
$

 
$
(8,551
)
 
$

 
$
1,082

 
$

 
$
(511
)
 
$
7,308

 
$
(2,058
)
 
 
Total liabilities
$
15,288

 
$

 
$

 
$
(8,551
)
 
$

 
$
1,082

 
$

 
$
(511
)
 
$
7,308

 
$
(2,058
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(1)
Gains and losses included in earnings on fixed maturities are included in net realized investment gains (losses). Gains and (losses) included in earnings on other investments are included in net investment income. Gains (losses) on weather derivatives included in earnings are included in other insurance-related income.
(2)
Gains and losses included in other comprehensive income (“OCI”) on fixed maturities are included in unrealized gains (losses) arising during the period.
(3)
Change in unrealized investment gain (loss) relating to assets held at the reporting date.