Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

The components of inventories, net of allowances, are as follows (in thousands):

	December 31,
	2015		2014 (as Restated)
Finished goods	$	76,512	$	69,499
Work in process	8,905		4,075
Raw materials and supplies	99,899		61,623
	$	185,316	$	135,197

Summary Of Allowance For Excess And Obsolete Inventory [Table Text Block]

  The activity in the allowance for excess, obsolete, and net realizable value inventory account for the two years ended December 31, 2015 was as follows (in thousands):

	Years Ended December 31,
	2015			2014 (as Restated)
Balance at beginning of year	$	21,368		$	5,700
Provision	8,827			10,488
Additions from acquisitions	2,064			8,221
Charges	(10,722		)	(3,041		)
Balance at end of year	$	21,537		$	21,368