Fair Value Measurement (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
| Assets: |
|
|
| Short-term investments |
$ 117,951
|
$ 82,847
|
| Foreign currency forward exchange contracts not accounted for using hedge accounting |
86
|
123
|
| Total assets |
118,038
|
82,970
|
| Liabilities: |
|
|
| Interest rate swaps |
1,260
|
1,026
|
| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Assets: |
|
|
| Short-term investments |
0
|
0
|
| Foreign currency forward exchange contracts not accounted for using hedge accounting |
0
|
0
|
| Total assets |
0
|
0
|
| Liabilities: |
|
|
| Interest rate swaps |
0
|
0
|
| Significant Other Observable Inputs (Level 2) [Member] |
|
|
| Assets: |
|
|
| Short-term investments |
117,951
|
82,847
|
| Foreign currency forward exchange contracts not accounted for using hedge accounting |
86
|
123
|
| Total assets |
118,038
|
82,970
|
| Liabilities: |
|
|
| Interest rate swaps |
1,260
|
1,026
|
| Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Assets: |
|
|
| Short-term investments |
0
|
0
|
| Foreign currency forward exchange contracts not accounted for using hedge accounting |
0
|
0
|
| Total assets |
0
|
0
|
| Liabilities: |
|
|
| Interest rate swaps |
$ 0
|
$ 0
|