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Leases (Future Minimum Lease Payments) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011
Operating Leases, Future Minimum Payments Due [Abstract]
2012	$ 32,590
2013	28,002
2014	23,988
2015	21,211
2016	14,627
Thereafter	24,531
Total minimum lease payments	$ 144,949	[1]
[1] Minimum payments have not been reduced by minimum sublease rentals of $14.6 million due in the future under non-cancelable subleases.

X

- Definition

The total of future contractually required payments on leases defined as operating.

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For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within one year of the balance sheet date relating to leases defined as operating.

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