Goodwill and Other Intangible Assets - Balances of Other Intangible Assets Excluding Goodwill (Detail) - USD ($) $ in Thousands |
Jan. 30, 2016 |
Apr. 25, 2015 |
|---|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| Copyrights, trade names and trademarks | $ 29,900 | $ 17,600 |
| Distribution agreement, customer lists and other | 638,854 | 221,359 |
| Less: Accumulated amortization | (146,539) | (113,934) |
| Net amortized intangible assets | 492,315 | 107,425 |
| Total identifiable intangible assets, net | $ 522,215 | $ 125,025 |