Lease Commitments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Future minimum lease payments under noncancellable operating leases
Gross 2013	$ 8,127
Gross 2014	7,375
Gross 2015	1,590
Gross 2016	971
Gross 2017	476
Thereafter
Total Gross	18,539
Sublease Income 2013	(847)
Sublease Income 2014	(863)
Sublease Income 2015
Sublease Income 2016
Sublease Income 2017
Thereafter
Total Sublease Income	(1,710)
Net 2013	7,280
Net 2014	6,512
Net 2015	1,590
Net 2016	971
Net 2017	476
Thereafter
Total Net	$ 16,829

Operating leases future minimum payments due future minimum sublease rentals current.

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Operating leases future minimum payments due future minimum sublease rentals in five years.

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Operating leases future minimum payments due future minimum sublease rentals in four years.

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Operating leases future minimum payments due future minimum sublease rentals in three.

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Operating leases future minimum payments due future minimum sublease rentals in two.

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- Definition

Operating leases future minimum payments due future minimum sublease rentals thereafter.

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- Definition

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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Contractually required future rental payments receivable on noncancelable subleasing arrangements.

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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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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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- Definition

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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- Definition

Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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