Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
Income taxes (net of refunds of $9,270, $7,333 and $6,035 in 2016, 2015 and 2014, respectively)(a)	$ 143,404	$ 162,408	[1]	$ 56,174
Interest (net of capitalization)	96,948	153,271		33,604
Capital expenditures included in Accounts payable	$ 33,622	$ 45,826		$ 20,373

[1] Cash paid for income taxes during 2015 included approximately $111 million of taxes paid on repatriation of earnings from legacy Rockwood entities.