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Other Intangible, Net and Goodwill (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |  |  |  |  |
Change In Gross Amount of Identifiable Intangible Assets |  |  | $ 0 |  |
Finite-Lived Intangible Assets, Amortization Expense | $ 600 | $ 700 | 1,200 | $ 1,300 |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Carrying amount of goodwill | 132,410 |  | 132,410 |  | $ 132,410
Gross Amount | 25,900 |  | 25,900 |  |
Accumulated Amortization | 12,610 |  | 12,610 |  |
Net Intangible Assets | 13,290 |  | $ 13,290 |  |
Customer Relationships |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period (years) |  |  | 20 years |  |
Gross Amount | 13,600 |  | $ 13,600 |  |
Accumulated Amortization | 2,671 |  | 2,671 |  |
Net Intangible Assets | 10,929 |  | 10,929 |  |
Tradename |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Gross Amount | 8,100 |  | 8,100 |  |
Accumulated Amortization | 7,638 |  | 7,638 |  |
Net Intangible Assets | 462 |  | 462 |  |
Covenants Not to Compete |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Gross Amount | 4,200 |  | 4,200 |  |
Accumulated Amortization | 2,301 |  | 2,301 |  |
Net Intangible Assets | $ 1,899 |  | $ 1,899 |  |
Maximum [Member] | Tradename |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period (years) |  |  | 6 years |  |
Maximum [Member] | Covenants Not to Compete |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period (years) |  |  | 10 years |  |
Minimum [Member] | Tradename |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period (years) |  |  | 6 months |  |
Minimum [Member] | Covenants Not to Compete |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization period (years) |  |  | 1 year |  |

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