Supplemental Information (Tables)

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Other Income

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Interest income	$	644		$	537		$	1,578		$	6,900
Dividend income	127			574			250			1,499
Acquisition-related financing costs	—			(11,420		)	—			(12,220		)
Foreign exchange currency loss, net	(3,197		)	(1,281		)	(9,483		)	(2,435		)
Gain realized on previously held shares of Axiall    common stock	—			49,080			—			49,080
Gains from sales of securities, net	—			3,321			—			4,640
Income from non-consolidated subsidiaries	3,855			1,475			11,066			7,213
Other	629			(1,021		)	3,180			(2,586		)
Other income, net	$	2,058		$	41,265		$	6,591		$	52,091