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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Inventories [Abstract]
Raw materials and parts	$ 148,470	$ 139,372
Work-in-process	82,732	74,663
Finished goods	104,043	99,812
Used equipment	28,853	28,466
Total	$ 364,098	$ 342,313

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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