v3.8.0.1

Fair Value Disclosures - Carrying and Fair Value (Details) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | May 18, 2017 | Jun. 23, 2015 | Jun. 30, 2014
Fair Value Disclosures |  |  |  |  |  |
Contingent consideration (earn-out) |  | $ 2,400,000 |  |  |  |
Payment of the earn-out | $ 2,972,000 | 4,548,000 | $ 1,329,000 |  |  |
Reduction of earn-out | 1,818,000 | $ 422,000 | $ 116,000 |  |  |
Earn-out |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Payment of the earn-out | 2,400,000 |  |  |  |  |
Reduction of earn-out | 1,800,000 |  |  |  |  |
6.625% Senior Notes Due 2022 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Stated interest rate (percent) |  |  |  | 6.625% |  |
6.00% Senior Convertible Notes Due 2020 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Stated interest rate (percent) |  |  |  |  | 6.00% |
8.5% Senior Notes Due 2019 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Stated interest rate (percent) |  | 8.50% |  | 8.50% |  |
Carrying Amount | Earn-out |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Contingent consideration (earn-out) |  | $ 2,400,000 |  |  |  |
Carrying Amount | 6.625% Senior Notes Due 2022 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Debt | 392,909,000 |  |  |  |  |
Carrying Amount | 6.00% Senior Convertible Notes Due 2020 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Debt | 79,199.00 | 78,878.00 |  |  |  |
Carrying Amount | 8.5% Senior Notes Due 2019 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Debt |  | 196,782,000 |  |  |  |
Fair Value | 8.5% Senior Notes Due 2019 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Debt |  | 206,500,000 |  |  |  |
Fair Value | Level 2 | 6.625% Senior Notes Due 2022 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Debt | 420,480,000 |  |  |  |  |
Fair Value | Level 2 | 6.00% Senior Convertible Notes Due 2020 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Debt | $ 90,240.00 | 84,984.00 |  |  |  |
Fair Value | Level 3 | Earn-out |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Contingent consideration (earn-out) |  | $ 2,400,000 |  |  |  |
Senior Notes | 6.00% Senior Convertible Notes Due 2020 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Stated interest rate (percent) | 6.00% | 6.00% |  |  |  |
Senior Notes | 8.5% Senior Notes Due 2019 |  |  |  |  |  |
Fair Value Disclosures |  |  |  |  |  |
Stated interest rate (percent) | 6.625% |  |  |  |  | 8.50%

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