Commitments And Contingencies - Narrative (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Loss Contingencies [Line Items]
Letters of Credit Outstanding, Amount	$ 45,000,000	$ 42,000,000
Allowance for Doubtful Accounts Receivable, Current	4,168,000	2,298,000
Collectibility of Receivables [Member] | Brazil [Member]
Loss Contingencies [Line Items]
Accounts receivable, overdue	4,100,000
Allowance for Doubtful Accounts Receivable, Current	$ 3,300,000