Net Investment in Sales-Type Leases (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Net Investment in Sales-Type Leases [Abstract]
2013	$ 4,571
2014	5,245
2015	4,158
2016	2,899
2017	2,165
Thereafter	500
Total	$ 19,538

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Amount of minimum lease payments to be received by the lessor for capital leases.

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Amount of minimum lease payments to be received by the lessor after the fifth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor in the third fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor in the second fiscal year following the latest fiscal year for capital leases.

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