Subsequent Events	12 Months Ended
Dec. 31, 2011
Subsequent Events [Text Block]	(24) Subsequent Events In January 2012, the Company repurchased $3.75 million principal amount of its 4% notes above par and recorded approximately $0.1 million loss on early retirement of debt.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

No definition available.

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration