Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax rate	35.00%	35.00%	35.00%
U.S. foreign tax credits	(119.30%)	(100.70%)	(80.30%)
Repatriation of foreign earnings	79.80%	68.00%	53.60%
Change in valuation allowance	43.20%	34.50%	26.70%
Foreign and U.S. tax rate differential	(20.40%)	(20.00%)	(20.90%)
Tax exempt income of foreign subsidiary (Macao)	(8.70%)	(7.80%)	(8.50%)
Other, net	1.00%	0.00%	0.80%
Effective tax rate	10.60%	9.00%	6.40%