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Leases (Assets Under Capital Leases) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Leases, Operating [Abstract]
Information systems	$ 9,910	$ 12,232
Less: Accumulated amortization	(2,270)	(3,065)
Total assets under capital leases	$ 7,640	$ 9,167

Property, plant, or equipment held under lease agreements classified as an asset.

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.