Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets
Net operating loss carry-forwards	$ 17,034	$ 15,133
Unearned and deferred compensation	29,104	17,272
Basis differences - foreign investments	4,482	0
Other	10,565	10,832
Total deferred income taxes	61,185	43,237
Valuation allowance	(18,214)	(15,133)
Net deferred income taxes	42,971	28,104
Deferred Tax Liabilities
Basis differences — equity investees	(9,870)	(13,251)
Basis differences ­— foreign investments	(38,405)	0
Receivables from affiliates	(30,248)	(31,598)
Other	(187)	(583)
Total deferred tax liabilities	(78,710)	(45,432)
Net Deferred Tax Liability	$ (35,739)	$ (17,328)