Other Investments (Tables)

12 Months Ended

Dec. 31, 2015

Investments, All Other Investments [Abstract]

Other investments comprised the following at December 31, 2015 and 2014. See Note 2(c), "Significant Accounting Policies - Total Investments - Other Investments," for a description of our accounting policy for these assets:



Year ended December 31, (U.S. dollars in thousands)	2015		2014
Hedge Funds:
Arbitrage	$	205,117	$	179,821
Directional	276,277		336,082
Event Driven	5,427		56,238
Multi-Style	57,249		68,706
Total hedge funds	$	544,070	$	640,847
Private investment funds	244,576		129,243
Overseas deposits	479,187		92,223
Structured transactions	138,608		350,563
Other	26,616		35,563
Total other investments	$	1,433,057	$	1,248,439

Analysis of net realized and unrealized gains

The following represents an analysis of the net realized gains for the indicated years ended December 31, and the net unrealized gains as of December 31, on the Company’s hedge funds and private investment funds:



Year ended December 31, (U.S. dollars in thousands)	Net Unrealized Gains (Losses)				Net Realized Gains (Losses)
Year ended December 31, (U.S. dollars in thousands)	2015		2014		2015		2014		2013
Hedge funds	$	188,698	$	188,674	$	12,769	$	6,685	$	30,858
Private investment funds	38,340		42,604		9,342		13,275		4,331
Total	$	227,038	$	231,278	$	22,111	$	19,960	$	35,189