Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Member Loans at fair value	$ 3,230,661	$ 2,798,505
Accrued interest receivable from consolidated Trust	26,577us-gaap_InterestReceivable	24,262us-gaap_InterestReceivable
Accrued interest payable from consolidated Trust	29,683	26,964
Notes and certificates, at fair value from consolidated Trust	3,249,346	2,813,618
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	900,000,000us-gaap_CommonStockSharesAuthorized	900,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	372,103,394us-gaap_CommonStockSharesIssued	371,443,916us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	372,103,394us-gaap_CommonStockSharesOutstanding	371,443,916us-gaap_CommonStockSharesOutstanding
Consolidated Trust
Member Loans at fair value	2,037,776	1,772,407
Accrued interest receivable from consolidated Trust	16,604	15,209
Accrued interest payable from consolidated Trust	18,732	16,989
Notes and certificates, at fair value from consolidated Trust	$ 2,049,748	$ 1,772,407

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