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Contingencies and Commitments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Summary of future minimum lease payments
2013	$ 2,928
2014	2,587
2015	2,620
2016	2,449
2017	2,412
2018-2022	4,875
2023 and beyond	$ 0

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- Definition

Operating leases future minimum payments due after five years to ten years.

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Operating leases future minimum payments due after ten years.

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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 fifth 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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Amount of required minimum rental payments maturing in the second 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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