Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2013

Supplemental Cash Flow Elements [Abstract]

Net Changes In Components Of Operating Assets And Liabilities

	Year Ended December 31,
	2013			2012			2011
(Increase) decrease in:
Accounts receivable	$	(96,300	)	$	(34,299	)	$	(66,208	)
Inventories	1,720			14,074			(46,151		)
Other current assets	(39,170		)	(9,593		)	(3,598		)
Increase (decrease) in:
Accounts payable	41,718			53,146			33,049
Accrued liabilities	45,846			(10,263		)	15,977
Net changes in components of operating assets and liabilities	$	(46,186	)	$	13,065		$	(66,931	)