Goodwill - Additional Information (Detail) |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 29, 2014
Unit
|
Dec. 27, 2014
USD ($)
|
Dec. 28, 2013
USD ($)
|
Dec. 29, 2012
USD ($)
|
|
| Goodwill [Line Items] | ||||
| Reporting unit percentage of fair value less than carrying amount | 50.00% | |||
| Weightage for DCF valuation and market assessment to estimate fair value of operating unit | 50.00% | |||
| Goodwill impairment | $ 68,202,000 | |||
| Impairment charges recognized | $ 0 | $ 0 | $ 0 | |
| Subsequent Event [Member] | ||||
| Goodwill [Line Items] | ||||
| Total number of reporting units | Unit | 11 | |||
| Goodwill [Member] | ||||
| Goodwill [Line Items] | ||||
| Discount rate | 11.00% | |||