Sentel Acquisition - Business Acquisition (Details) - USD ($) $ in Thousands |
Mar. 30, 2018 |
Jan. 23, 2018 |
Dec. 31, 2017 |
|---|---|---|---|
| Business Acquisition [Line Items] | |||
| Goodwill | $ 231,236 | $ 216,930 | |
| Sentel Corporation | |||
| Business Acquisition [Line Items] | |||
| Receivables | $ 23,180 | ||
| Deferred taxes | 3,944 | ||
| Property, plant and equipment | 851 | ||
| Goodwill | 14,306 | ||
| Intangible assets | 10,500 | ||
| Other current assets | 975 | ||
| Accounts payable | (10,012) | ||
| Other current liabilities | (5,979) | ||
| Other non-current liabilities | (555) | ||
| Preliminary purchase price, net of cash acquired | $ 37,210 |