Accounts and Notes Receivable, net - Schedule of Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011
Receivables [Abstract]
Accounts Receivable, Gross, Current	$ 43,965				$ 40,687
Other Receivables, Gross, Current	1,072				1,921
Allowance for Doubtful Accounts Receivable, Current	(1,115)				(1,872)
Accounts and notes receivable, net	$ 43,922	$ 42,793	$ 43,752	$ 43,139	$ 40,736	$ 41,685	$ 44,765	$ 44,554	$ 43,501