Contingency - Additional Information (Detail) - USD ($) |
Mar. 30, 2015 |
Mar. 06, 2015 |
|---|---|---|
| Loss Contingencies [Line Items] | ||
| Settlement fund to pay claims | $ 4,000,000 | |
| Violation of Telephone Consumer Protection Act [Member] | ||
| Loss Contingencies [Line Items] | ||
| Damage amount for each violation | $ 500 | |
| Willful Violation of Telephone Consumer Protection Act [Member] | ||
| Loss Contingencies [Line Items] | ||
| Damage amount for each violation | $ 1,500 |