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Commitments and Contingencies Commitments And Contingencies (Future minimum operating lease payments) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Years Ending December 31,
Future minimum lease payments - 2013	$ 29,526
Future minimum lease payments - 2014	25,510
Future minimum lease payments - 2015	22,460
Future minimum lease payments - 2016	15,485
Future minimum lease payments - 2017	9,291
Future minimum lease payments - Thereafter	16,486
Future minimum lease payments - Total	$ 118,758	[1]
[1] (a)Minimum payments have not been reduced by minimum sublease rentals of $15.1 million due in the future under non-cancelable subleases.

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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