|
Significant Concentrations and Risks (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2014
|
Mar. 31, 2013
|
|
| Revenue, Major Customer [Line Items] | ||
| Amount of Sales | $ 201,894 | $ 209,554 |
|
Customer A [Member]
|
||
| Revenue, Major Customer [Line Items] | ||
| Amount of Sales | 23,740 | |
| % Total Sales | 12.00% | |
|
Customer B [Member]
|
||
| Revenue, Major Customer [Line Items] | ||
| Amount of Sales | $ 30,853 | |
| % Total Sales | 15.00% | |