Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Statutory tax rate	35.00%	35.00%	35.00%
State taxes, net of federal tax benefit	0.00%	1.70%	6.60%
Valuation allowance	3.40%	(5.90%)	(8.90%)
Foreign income taxes	(0.30%)	(0.10%)	0.10%
Goodwill	0.00%	(9.30%)	(0.40%)
Deconsolidation of CEOC	(38.60%)	0.00%	0.00%
Stock-based compensation	0.30%	(0.80%)	(0.20%)
Acquisition and integration costs	0.00%	(0.40%)	0.10%
Reserves for uncertain tax positions	0.00%	0.30%	0.00%
Sale of stock of subsidiary	0.00%	(0.50%)	0.00%
Capital loss tax benefit	0.00%	0.00%	4.20%
Disallowed losses on sale to related party	(0.00%)	(3.90%)	(0.30%)
Deferred tax adjustment upon contribution of CIE to CGP	(0.00%)	(0.00%)	(0.50%)
Noncontrolling interests	(0.60%)	1.00%	0.00%
Other	(0.10%)	(0.20%)	0.00%
Effective tax rate	(0.90%)	16.90%	35.70%