Business Combination (Tables)

12 Months Ended

Dec. 31, 2013

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

The Company's purchase price for BCD and related costs are estimated as follows:

Purchase price (cost of shares)	$	154,735
Acquisition related costs (included in selling, general and administrative expenses)		2,075
Total purchase price	$	156,810

Schedule of Purchase Price Allocation [Table Text Block]

The following summarizes the allocation of the purchase price to the fair value of the assets acquired and liabilities assumed at the date of acquisition:

	March 1, 2013
	Acquisition
	Method
Assets acquired:
Cash and cash equivalents	$	29,819
Accounts receivable, net		20,862
Inventory		42,909
Prepaid expenses and other current assets		27,205
Property, plant and equipment, net		99,390
Deferred tax assets		1,612
Other long-term assets		5,497
Other intangible assets		17,200
Goodwill		2,518
Total assets acquired	$	247,012
Liabilities assumed:
Lines of credit	$	17,336
Accounts payable		34,758
Accrued liabilities and other		16,703
Deferred tax liability		5,055
Other liabilities		18,425
Total liabilities assumed		92,277
Total net assets acquired, net of cash acquired	$	154,735

Business Acquisition, Pro Forma Information [Table Text Block]

The following unaudited pro forma consolidated results of operations for the years ended December 31, 2013 and 2012 have been prepared as if the acquisition of BCD had occurred at January 1, 2012,for each year:

	Twelve Months Ended
	December 31,
	2013		2012
Net revenues	$	847,947	$	776,650
Net income attributable to common stockholders	$	25,513	$	19,233
Earnings per share—Basic	$	0.55	$	0.42
Earnings per share—Diluted	$	0.54	$	0.41