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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract] |
Future Minimum Rental Payments on Operating Leases | The Company leases certain facilities and equipment under operating leases. Most leases contain renewal options for varying periods. Future minimum rental payments on such operating leases at December 31, 2015 are as follows:
(Dollar amounts in thousands) |  | Unrelated parties |  |  | Related party |  |  | Minimum future rentals to related parties |
2016 |  | $ | 444 |  |  | $ | 4,226 |  |  | $ | 4,670 |
2017 |  |  | 259 |  |  |  | 4,352 |  |  |  | 4,611 |
2018 |  |  | 8 |  |  |  | 4,483 |  |  |  | 4,491 |
2019 |  |  | — |  |  |  | 4,618 |  |  |  | 4,618 |
2020 and thereafter |  |  | — |  |  |  | 1,163 |  |  |  | 1,163 |
|  | $ | 711 |  |  | $ | 18,842 |  |  | $ | 19,553 |

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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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