Acquisitions - Additional Information (Detail) - USD ($) $ in Millions |
Jul. 31, 2015 |
Feb. 16, 2016 |
|---|---|---|
| Staples Inc | ||
| Business Acquisition [Line Items] | ||
| Agreement to purchase from Staples | $ 550.0 | |
| Nestor Sales LLC [Member] | ||
| Business Acquisition [Line Items] | ||
| Stock acquisition, percentage acquired | 100.00% | |
| Business acquisition cash paid | $ 41.8 |