Consolidated Statement Of Assets, Liabilities And Shareholders' Equity (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 51,546	$ 62,737
Investments, financial derivatives and repurchase agreements:
Investments at fair value (Cost - $1,232,162 and $1,234,203)	1,225,584	1,212,483
Financial derivatives - assets at fair value (Cost - $105,906 and $118,281)	94,056	102,871
Repurchase agreements (Cost - $13,650 and $15,750)	13,650	15,750
Total investments, financial derivatives and repurchase agreements	1,333,290	1,331,104
Deposits with dealers held as collateral	32,362	34,163
Receivable for securities sold	642,218	533,708
Interest and principal receivable	6,138	6,127
Other assets	1,024	216
Total Assets	2,066,578	1,968,055
LIABILITIES
Investments sold short at fair value (Proceeds - $579,447 and $459,013)	579,852	462,394
Financial derivatives - liabilities at fair value (Proceeds - $21,088 and $9,636)	27,298	27,040
Total investments and financial derivatives	607,150	489,434
Reverse repurchase agreements	921,406	896,210
Due to brokers on margin accounts	65,497	79,735
Payable for securities purchased	70,688	127,517
Securitized debt (Proceeds - $1,495 and $0)	1,485
Accounts payable and accrued expenses	1,500	1,845
Base management fee payable	1,492	1,396
Interest and dividends payable	1,096	1,002
Total Liabilities	1,670,314	1,597,139
SHAREHOLDERS' EQUITY	396,264	370,916
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	2,066,578	1,968,055
ANALYSIS OF SHAREHOLDERS' EQUITY:
Common shares, no par value, 100,000,000 shares authorized; (16,447,651 and 16,447,651 shares issued and outstanding)	387,367	362,047
Additional paid-in capital - LTIP units	8,897	8,869
Total Shareholders' Equity	$ 396,264	$ 370,916
PER SHARE INFORMATION:
Common shares	$ 24.09	$ 22.55