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Benefit Plans (Tables) | 12 Months Ended
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Sep. 30, 2017
Retirement Benefits [Abstract] |
Schedule of contributions to multi-employer pension plans | Below is a table of our contributions to multi-employer pension plans:
| Years Ended September 30,
| 2017 |  | 2016 |  | 2015
| (dollars in thousands)
Pensioenfonds Metaal en Techniek (PMT) | $ | 805 |  |  | $ | 796 |  |  | $ | 805 |
Other plans | 188 |  |  | 187 |  |  | 158 |
Total | $ | 993 |  |  | $ | 983 |  |  | $ | 963 |

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- Definition Tabular disclosure of defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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