Inventories, Net and Significant Suppliers - Related Party Vendor (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2014 Executive Vice President [Member]	Jun. 30, 2014 Affiliated Entity [Member]	Dec. 31, 2013 Affiliated Entity [Member]	Jun. 30, 2014 Supplier Concentration Risk [Member] Cost of Goods, Total [Member] Affiliated Entity [Member]	Jun. 30, 2013 Supplier Concentration Risk [Member] Cost of Goods, Total [Member] Affiliated Entity [Member]	Jun. 30, 2014 Supplier Concentration Risk [Member] Cost of Goods, Total [Member] Affiliated Entity [Member]	Jun. 30, 2013 Supplier Concentration Risk [Member] Cost of Goods, Total [Member] Affiliated Entity [Member]
Related Party Transaction [Line Items]
Ownership Percentage in Third Party by Executive	40.00%
Related Party Purchases				$ 2,507	$ 2,469	$ 4,230	$ 4,685
Concentration Risk		3.60%	4.20%	3.30%	3.00%	3.00%	3.20%
Related Parties, Accounts Payable		$ 2,533	$ 2,439