Commitments and Contingencies (Future Minimum Lease Payments) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Future minimum payments under non-cancellable operating leases
Lease payments, 3 months ending December 31, 2013	$ 719
Lease payments, Year ending December 31, 2014	2,947
Lease payments, Year ending December 31, 2015	3,031
Lease payments, Year ending December 31, 2016	3,047
Lease payments, Year ending December 31, 2017	2,677
Lease payments, Year ending December 31, 2018 and beyond	5,790
Lease payments, Total	$ 18,211

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 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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Amount of required minimum rental payments maturing after 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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