Leases and Other Commitments (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Leases And Other Commitments [Abstract]
Future minimum lease payments for 2013	$ 131,737
Future minimum lease payments for 2014	118,524
Future minimum lease payments for 2015	98,013
Future minimum lease payments for 2016	88,852
Future minimum lease payments for 2017	76,573
Future minimum lease payments after 2017	260,129
Operating leases, future minimum payments due, total	$ 773,828

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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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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

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