Supplemental Cash Flow Information - Change in Certain Working Capital Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other changes in certain working capital accounts, net
Accounts and notes receivable	$ (14,064)	$ 10,181	$ (3,085)
Income taxes receivable/payable — net	2,490	34,412	(22,499)
Accounts payable	(6,800)	5,631	(16,745)
Accrued employee compensation and benefits	(10,132)	2,049	(3,393)
Other accrued liabilities	2,326	673	(6,648)
Other, net	(3,889)	7,648	10,591
Total	$ (30,069)	$ 60,594	$ (41,779)