XML 25 R55.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Summary Of Interest Capitalized And Depreciation Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Summary Of Significant Accounting Policies [Abstract]
Capitalized interest	$ 250	$ 152	$ 660
Depreciation expense	$ 19,872	$ 18,797	$ 18,034

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References+ Details