Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Operating leases future minimum rentals and service income
Future Rental and Service Income - Operating Leases, 2014	$ 61,670
Future Rental and Service Income - Operating Leases, 2015	48,109
Future Rental and Service Income - Operating Leases, 2016	36,714
Future Rental and Service Income - Operating Leases, 2017	25,641
Future Rental and Service Income - Operating Leases, 2018	15,324
Future Rental and Service Income - Operating Leases, Future years	20,812
Future Rental and Service Income - Operating Leases, Total	208,270
Future Minimum Rental Payments, 2014	15,679
Future Minimum Rental Payments, 2015	15,120
Future Minimum Rental Payments, 2016	13,101
Future Minimum Rental Payments, 2017	10,658
Future Minimum Rental Payments, 2018	7,136
Future Minimum Rental Payments, Future years	10,410
Future Minimum Rental Payments, Total	$ 72,104

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Operating leases future rental and service income.

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Operating leases future rental and service income current.

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- Definition

Operating leases future rental and service income in five years.

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Operating leases future rental and service income in four years.

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Operating leases future rental and service income in three years.

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Operating leases future rental and service income in two years.

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- Definition

Operating leases future rental and service income thereafter.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 23

-Subparagraph b(ii)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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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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- Definition

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

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