Income Taxes - (Narrative) (Details) - USD ($)
|
3 Months Ended |
12 Months Ended |
Sep. 30, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Tax benefit from intra-period allocation |
$ (3,400,000)
|
|
$ 140,000
|
$ 7,175,000
|
| Income taxes (benefit) |
|
$ 13,299,000
|
14,710,000
|
5,550,000
|
| Deferred tax assets, gross |
|
174,251,000
|
154,401,000
|
|
| Deferred tax liabilities |
|
30,512,000
|
33,636,000
|
|
| Deferred tax assets, valuation allowance |
|
173,981,000
|
151,972,000
|
|
| Income Taxes Paid, Net |
|
26,663,000
|
7,966,000
|
6,384,000
|
| Domestic state and local tax loss carryforwards |
|
598,000,000
|
|
|
| Tax credit carryforwards |
|
35,606,000
|
|
|
| Unrecognized tax benefits, excluding interest and penalties |
|
2,337,000
|
8,366,000
|
|
| Unrecognized tax benefits that would impact effective tax rate |
|
2,337,000
|
8,366,000
|
|
| Income tax penalties and interest expense |
|
(288,000)
|
(315,000)
|
$ (500,000)
|
| Income tax penalties and interest accrued |
|
813,000
|
$ 5,440,000
|
|
| Foreign Tax Authority [Member] |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Deferred Tax Assets, Operating Loss Carryforwards, Foreign |
|
68,845,000
|
|
|
| Tax Year 2034 [Member] | State and Local Jurisdiction [Member] |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |
|
4,800,000
|
|
|
| Tax Year 2014 to 2017 | State and Local Jurisdiction [Member] |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |
|
217,900,000
|
|
|
| Tax year 2018 to 2027 | State and Local Jurisdiction [Member] |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |
|
189,700,000
|
|
|
| Tax Year 2014 to 2018 | Domestic tax authority |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Tax credit carryforwards |
|
20,658,000
|
|
|
| Tax Year 2019 to 2022 | Domestic tax authority |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Tax credit carryforwards |
|
13,220,000
|
|
|
| Tax Year 2028 and Thereafter | State and Local Jurisdiction [Member] |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |
|
190,400,000
|
|
|
| Tax Year 2034 to 2036 [Member] | Domestic tax authority |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Federal tax credit carryforwards |
|
205,284,000
|
|
|
| Tax Year 2031 | Domestic tax authority |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Tax credit carryforwards |
|
1,604,000
|
|
|
| Indefinite | Domestic tax authority |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Tax credit carryforwards |
|
124,000
|
|
|
| Loss Carryforwards | Foreign Tax Authority [Member] |
|
|
|
|
| Tax Credit Carryforward [Line Items] |
|
|
|
|
| Deferred tax assets, valuation allowance |
|
$ 67,562,000
|
|
|