Acquisitions Finnveden (Details) - Finnveden [Member] - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 72,618
Business Combinations, Recognized Identifiable Assts Acquired And Liabilities Assumed, Net of Cash Acquired		$ 66,396
Cash and cash equivalents		6,222
Accounts receivable		29,744
Inventory		26,858
Prepaid expenses		3,681
Property, plant and equipment		35,408
Goodwill		7,804
Intangible assets		1,136
Other non-current assets		3,830
Accounts payable and other		(36,416)
Long term liabilities		(5,649)
Net assets acquired		$ 72,618