Commitments And Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Minimum Operating Lease Payments
Minimum operating lease payments, 2014	$ 8,673
Minimum operating lease payments, 2015	8,580
Minimum operating lease payments, 2016	8,581
Minimum operating lease payments, 2017	7,621
Minimum operating lease payments, 2018	555
Total minimum operating lease payments,	34,010
Future Minimum Sublease Rentals
Sublease income, 2014	429
Sublease income, 2015	433
Sublease income, 2016	439
Sublease income, 2017	0
Sublease income, 2018	0
Total Sublease Income	1,301
Minimum Net Operating Lease Payments
Net operating lease payments, 2014	8,244
Net operating lease payments, 2015	8,147
Net operating lease payments, 2016	8,142
Net operating lease payments, 2017	7,621
Net operating lease payments, 2018	555
Total net operating lease payments	$ 32,709

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Operating Leases, Future Minimum Payments, Net, Due in Four Years

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Operating Leases, Future Minimum Payments, Net, Due in Three Years

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Operating Leases, Future Minimum Payments, Net, Due in Two Years

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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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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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