Balance Sheet Parentheticals (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Held-to-maturity Securities, Fair Value Disclosure	$ 2,748		$ 11,416
Available-for-sale Debt Securities, Amortized Cost Basis	120,757		340,795
Available-for-sale Equity Securities, Amortized Cost Basis	114,425		160,242
Variable interest entity (“VIE”) securities	94,521		83,184
Variable interest entity (“VIE”) short term investments	149,981		149,981
Allowance for doubtful accounts	0		50,000
Accumulated depreciation	96,403		92,451
VIE derivative assets	1,602		10,855
VIE Other Assets	105,903		112,426
VIE non-recourse debt	0		9,514
VIE derivative liabilities	19,501		19,226
Variable Interest Entity Accounts Payable And Other Liabilities	530		837
Par value	$ 0.001		$ 0.001
Shares authorized	325,000,000		325,000,000
Shares issued	150,666,446		150,507,853
Common Stock, Shares, Outstanding	133,199,159		133,049,213
Treasury stock shares	17,467,287		17,458,640
Debt Securities [Member]
Held-to-maturity Securities, Fair Value Disclosure	2,748		11,416
Available-for-sale Debt Securities, Amortized Cost Basis	120,757		340,795
Equity Securities [Member]
Available-for-sale Equity Securities, Amortized Cost Basis	$ 114,425	[1]	$ 160,242	[2]

[1] Comprising broadly diversified domestic equity mutual funds ($116.0 million fair value at December 31, 2011) and various preferred and common stocks invested across numerous companies and industries ($12.4 million fair value at December 31, 2011).

[2] Comprising broadly diversified domestic equity mutual funds ($168.4 million fair value at December 31, 2010) and various preferred and common stocks invested across numerous companies and industries ($16.0 million fair value at December 31, 2010).