Commitments and Contingencies- Solar Tariff Contingency (Details) - Unfavorable Regulatory Action |
1 Months Ended | 3 Months Ended | 6 Months Ended | |
|---|---|---|---|---|
Oct. 31, 2012 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Mar. 31, 2015 |
|
| Loss Contingencies [Line Items] | ||||
| Anti-dumping duty rate | 31.18% | |||
| Solar tariff, countervailing duty rate prior to increase | 3.61% | 3.61% | 3.61% | |
| Solar tariff, countervailing duty rate | 15.24% | |||
| Maximum | ||||
| Loss Contingencies [Line Items] | ||||
| Anti-dumping duty rate | 249.96% | |||