SENTAL Acquisition - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Jan. 23, 2018 |
Mar. 29, 2019 |
Mar. 30, 2018 |
Dec. 31, 2018 |
|
| Acquired Finite-Lived Intangible Assets [Line Items] | ||||
| Preliminary purchase price, net of cash acquired | $ 0 | $ 37,210 | ||
| Goodwill | 233,619 | $ 233,619 | ||
| SENTEL | ||||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||||
| Percentage of outstanding common stock acquired | 100.00% | |||
| Preliminary purchase price, net of cash acquired | $ 36,855 | |||
| Consideration transferred | 36,000 | |||
| Working capital adjustments | 900 | |||
| Goodwill | 16,689 | |||
| Recognized revenue from acquired entity | $ 34,900 | $ 23,100 | ||
| SENTEL | Backlog | ||||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||||
| Intangible assets | $ 6,500 | |||
| Amortization period | 4 years | |||
| SENTEL | Re-competes | ||||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||||
| Intangible assets | $ 4,000 | |||
| Amortization period | 8 years | |||