Fair Value Measurements (Details 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
VIE and other finance receivables and long-term debt
Realized and unrealized gains and losses included in earnings
Gains (losses) included in earnings	$ 88,774	$ 122,295
Unrealized gains (losses) relating to assets still held	88,774	122,295
Life settlement contracts income
Realized and unrealized gains and losses included in earnings
Gains (losses) included in earnings		(65)
Unrealized gains (losses) relating to assets still held		$ (12)