Acquisitions and Dispositions (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 25, 2012	Sep. 30, 2011	Sep. 30, 2012 CMP Acquisition [Member]	Sep. 30, 2012 CMP Sellers [Member] CMP Acquisition [Member]	Sep. 30, 2012 CMP Restated Warrants [Member] CMP Acquisition [Member]	Sep. 30, 2012 CMP Preferred Stock [Member] CMP Acquisition [Member]	Sep. 30, 2012 Assumed Debt [Member] CMP Acquisition [Member]
Final purchase price allocation in the CMP Acquisition
Purchase price	$ 16,800	$ 17,394	$ 724,233	$ 34,909	$ 29,021	$ 41,069	$ 619,234
Existing equity interest in CMP			11,636
Total fair value for allocation			$ 735,869