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v3.10.0.1

Fair Value Measurements (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Oct. 01, 2016 | Dec. 31, 2015
Assets: |  |  |  |  |
Held-to-maturity Securities, Transferred Security, at Carrying Value | $ 0 |  |  |  |
Held-to-maturity Securities, Unrecognized Holding Gain | 0 |  |  |  |
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities | 0 |  |  |  |
Liabilities: |  |  |  |  |
Long-term Debt | 509,407 | $ 379,033 |  |  |
Derivative, Notional Amount | 0 | 100,000 |  |  |
Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Assets held in rabbi trusts | 41,770 | 45,252 |  |  |
Available for sale securities | 4,309 | 4,621 |  |  |
Fair Value Assets | 116,899 | 120,478 |  |  |
Liabilities: |  |  |  |  |
Fair Value Liabilities | (70) | (538) |  |  |
Defined Benefit Pension Plans [Member] | Foreign Plan [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 70,820 | 70,605 | $ 66,090 |  |
Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 9,344 | 8,793 |  |  |
Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Fixed Income Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 13,572 | 12,793 |  |  |
Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Cash and Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 47,904 | 49,019 |  |  |
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Assets held in rabbi trusts | 26,278 | 28,589 |  |  |
Available for sale securities | 4,309 | 4,621 |  |  |
Fair Value Assets | 101,407 | 103,815 |  |  |
Liabilities: |  |  |  |  |
Fair Value Liabilities | 0 | 0 |  |  |
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 9,344 | 8,793 |  |  |
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Fixed Income Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 13,572 | 12,793 |  |  |
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Cash and Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 47,904 | 49,019 |  |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Long-term Debt, Fair Value | 577,200 | 1,071,200 |  |  |
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Assets held in rabbi trusts | 15,492 | 16,663 |  |  |
Available for sale securities | 0 | 0 |  |  |
Fair Value Assets | 15,492 | 16,663 |  |  |
Liabilities: |  |  |  |  |
Fair Value Liabilities | 0 | 0 |  |  |
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 0 | 0 |  |  |
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Fixed Income Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 0 | 0 |  |  |
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Cash and Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 0 | 0 |  |  |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Assets held in rabbi trusts | 0 | 0 |  |  |
Available for sale securities | 0 | 0 |  |  |
Fair Value Assets | 0 | 0 |  |  |
Liabilities: |  |  |  |  |
Fair Value Liabilities | (70) | (538) |  |  |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of definite-lived intangible asset |  |  |  | $ 18,800 | $ 20,359
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 0 | 0 |  |  |
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Fixed Income Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 0 | 0 |  |  |
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Pension Plans [Member] | Foreign Plan [Member] | Cash and Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Assets: |  |  |  |  |
Fair value of plan assets | 0 | 0 |  |  |
Convertible Senior Debentures, Due 2040 [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (1) | (206) |  |  |
Convertible debentures issuance date | Nov. 09, 2010 |  |  |  |
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (1) | (206) |  |  |
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | 0 | 0 |  |  |
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | 0 | 0 |  |  |
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | (1) | (206) |  |  |
Convertible Senior Debentures, Due 2041 [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (67) | (214) |  |  |
Convertible debentures issuance date | May 13, 2011 |  |  |  |
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (67) | (214) |  |  |
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | 0 | 0 |  |  |
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | 0 | 0 |  |  |
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (67) | (214) |  |  |
Convertible Senior Debentures 2042 [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Convertible debentures issuance date | May 31, 2012 |  |  |  |
Convertible Senior Debentures 2042 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (2) | (118) |  |  |
Convertible Senior Debentures 2042 [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | 0 | 0 |  |  |
Convertible Senior Debentures 2042 [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | 0 | 0 |  |  |
Convertible Senior Debentures 2042 [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |  |  |
Liabilities: |  |  |  |  |
Embedded derivative | $ (2) | $ (118) |  |  |

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