Income Taxes - Narrative (Details) - USD ($)
|
12 Months Ended |
|
|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 30, 2015 |
Dec. 31, 2014 |
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
|
|
|
|
|
| Increase (decrease) valuation allowance |
$ (200,000)
|
|
|
|
|
| Unrecognized tax benefits |
0
|
$ 429,000
|
$ 0
|
|
$ 7,604,000
|
| Settlements with tax authorities |
429,000
|
0
|
0
|
|
|
| Tax settlements |
0
|
0
|
7,604,000
|
|
|
| Interest expense related to tax matters |
0
|
0
|
100,000
|
|
|
| Interest accrued for tax matters |
0
|
|
|
|
|
| Income tax expense (benefit) excluding tax cuts and jobs act impact |
12,200,000
|
|
|
|
|
| Interest payable |
22,917,000
|
(13,532,000)
|
(2,458,000)
|
|
|
| Tax Cuts and Jobs Act of 2017, transition tax for accumulated foreign earnings, income tax expense |
400,000
|
|
|
|
|
| Tax Cuts and Jobs Act of 2017, change in tax rate, deferred tax asset, income tax expense |
(35,500,000)
|
|
|
|
|
| Tax Cuts and Jobs Act of 2017, acceleration of income, before taxes, recognized for tax purposes |
76,900,000
|
|
|
|
|
| Selling, general and administrative expenses |
$ 60,728,000
|
$ 64,086,000
|
65,687,000
|
|
|
| Spinoff | Indemnified receivable |
|
|
|
|
|
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
|
|
|
|
|
| Interest payable |
|
|
3,200,000
|
|
|
| Income taxes |
|
|
0
|
$ 3,200,000
|
|
| Indemnification receivable |
|
|
0
|
3,300,000
|
|
| Selling, general and administrative expenses |
|
|
3,300,000
|
|
|
| Spinoff | Indemnified receivable | Exelis |
|
|
|
|
|
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
|
|
|
|
|
| Income tax indemnification amount |
|
|
3,300,000
|
|
|
| Other non-current assets | Spinoff | Indemnified receivable |
|
|
|
|
|
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
|
|
|
|
|
| Indemnification receivable |
|
|
|
$ 100,000
|
|
| Tax Years Of Former Parent |
|
|
|
|
|
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
|
|
|
|
|
| Tax settlements |
|
|
6,900,000
|
|
|
| Tax Year 2014 |
|
|
|
|
|
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
|
|
|
|
|
| Tax settlements |
|
|
$ 700,000
|
|
|