Commitments (Future Minimum Payment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011
Operating Leases, Future Minimum Payments Due [Abstract]
Operating Leases, Future Minimum Payments Due, Current	$ 5,487
Operating Leases, Future Minimum Payments, Due in Two Years	4,307
Operating Leases, Future Minimum Payments, Due in Three Years	997
Operating Leases, Future Minimum Payments, Due in Four Years	208
Operating Leases, Future Minimum Payments, Due Thereafter	180
Operating Leases, Future Minimum Payment, Total	$ 11,179

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 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.

+ References+ Details

- 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.

+ References+ Details

- 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.

+ References+ Details