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Other Income (Loss), Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Income (Loss), Net [Abstract]
Gain on expiration/settlement of customer advances	$ 4,335	$ 1,268	$ 7,798	$ 7,605
All other, net	(56)	234	(1,221)	(190)
Total other income (loss), net	$ 4,279	$ 1,502	$ 6,577	$ 7,415

The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items.

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