Balance Sheet Parenthetical (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Held-to-maturity Securities, Fair Value Disclosure	$ 50	$ 351
Available-for-sale Debt Securities, Amortized Cost Basis	212,734	120,385
Available-for-sale Equity Securities, Amortized Cost Basis	78,106	78,106
Variable Interest Entity Fair Value Of Other Invested Assets	81,635	81,000
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	102,436	101,625
Variable Interest Entity Carrying Amount Of Derivative Assets	0	0
Variable Interest Entity Other Assets	92,594	92,023
Variable Interest Entity Derivative Liabilities	47,769	68,457
Variable Interest Entity Accounts Payable And Other Liabilities	$ 190	$ 254
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	485,000,000	485,000,000
Common Stock, Shares, Issued	190,712,673	190,636,972
Common Stock, Shares, Outstanding	173,166,892	173,099,515
Treasury Stock, Shares	17,545,781	17,537,457