Other Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Other Assets, Noncurrent [Abstract]
Deferred income taxes—noncurrent	[1]	$ 61,132	$ 75,813
Assets related to unrecognized tax benefits	[1]	15,076	50,875
Long-term advances to joint ventures	[2]	31,776	31,780
Other		34,336	35,930
Total		$ 142,320	$ 194,398	[3]

[1] See Note 1, “Summary of Significant Accounting Policies” and Note 20, “Income Taxes.”

[2] See Note 10, “Investments.”

[3] As of December 31, 2015, $8.6 million of Other Assets were classified as Assets held for sale in the consolidated balance sheets. See Note 3, “Divestitures,” for additional information.