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Retirement Benefits (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2016
Pension Plans, Defined Benefit [Member] |
Schedule of Net Periodic Benefit Costs |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Year Ended September 30,
﻿ |  | United States |  | Other Countries |  | Total
﻿ |  | 2016 |  | 2015 |  | 2014 |  | 2016 |  | 2015 |  | 2014 |  | 2016 |  | 2015 |  | 2014
﻿Service cost |  | $ | 1,695 |  | $ | 2,018 |  | $ | 3,516 |  | $ | 749 |  | $ | 784 |  | $ | 988 |  | $ | 2,444 |  | $ | 2,802 |  | $ | 4,504
﻿Interest cost |  |  | 5,236 |  |  | 5,956 |  |  | 6,382 |  |  | 1,637 |  |  | 2,128 |  |  | 2,410 |  |  | 6,873 |  |  | 8,084 |  |  | 8,792
﻿Expected return on plan assets |  |  | (10,140) |  |  | (10,647) |  |  | (9,813) |  |  | (2,659) |  |  | (3,032) |  |  | (3,070) |  |  | (12,799) |  |  | (13,679) |  |  | (12,883)
﻿Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Net losses |  |  | 1,292 |  |  | 396 |  |  | 330 |  |  | 246 |  |  | 190 |  |  | 655 |  |  | 1,538 |  |  | 586 |  |  | 985
﻿Net prior service (benefit) cost |  |  | 384 |  |  | 383 |  |  | 97 |  |  | - |  |  | - |  |  | (4) |  |  | 384 |  |  | 383 |  |  | 93
﻿Settlement loss |  |  | 47 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 47 |  |  | - |  |  | -
﻿Curtailment gain |  |  | - |  |  | - |  |  | (6,624) |  |  | - |  |  | - |  |  | (915) |  |  | - |  |  | - |  |  | (7,539)
﻿Net periodic (benefit) cost |  | $ | (1,486) |  | $ | (1,894) |  | $ | (6,112) |  | $ | (27) |  | $ | 70 |  | $ | 64 |  | $ | (1,513) |  | $ | (1,824) |  | $ | (6,048)
﻿
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | At or for the Year Ended September 30,
﻿ |  | United States |  | Other Countries |  | Total
﻿ |  | 2016 |  | 2015 |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Changes in projected benefit obligation: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Projected benefit obligation at beginning of year |  | $ | 145,870 |  | $ | 137,740 |  | $ | 62,231 |  | $ | 63,535 |  | $ | 208,101 |  | $ | 201,275
﻿Service cost |  |  | 1,695 |  |  | 2,018 |  |  | 749 |  |  | 784 |  |  | 2,444 |  |  | 2,802
﻿Interest cost |  |  | 5,236 |  |  | 5,956 |  |  | 1,637 |  |  | 2,128 |  |  | 6,873 |  |  | 8,084
﻿Net actuarial losses |  |  | 17,786 |  |  | 4,206 |  |  | 17,190 |  |  | 2,715 |  |  | 34,976 |  |  | 6,921
﻿Contribution by participants |  |  | 47 |  |  | 28 |  |  | 20 |  |  | 23 |  |  | 67 |  |  | 51
﻿Benefits paid |  |  | (9,789) |  |  | (4,078) |  |  | (2,656) |  |  | (2,424) |  |  | (12,445) |  |  | (6,502)
﻿Settlements |  |  | 47 |  |  | - |  |  | - |  |  | - |  |  | 47 |  |  | -
﻿Foreign currency exchange rate changes |  |  | - |  |  | - |  |  | (7,114) |  |  | (4,530) |  |  | (7,114) |  |  | (4,530)
﻿Projected benefit obligation at end of year |  | $ | 160,892 |  | $ | 145,870 |  | $ | 72,057 |  | $ | 62,231 |  | $ | 232,949 |  | $ | 208,101
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Changes in fair value of plan assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Fair value of plan assets at beginning of year |  | $ | 135,590 |  | $ | 142,090 |  | $ | 60,663 |  | $ | 63,071 |  | $ | 196,253 |  | $ | 205,161
﻿Actual return (loss) on plan assets |  |  | 19,859 |  |  | (2,535) |  |  | 10,202 |  |  | 2,975 |  |  | 30,061 |  |  | 440
﻿Contributions by the Company |  |  | 226 |  |  | 85 |  |  | 773 |  |  | 1,483 |  |  | 999 |  |  | 1,568
﻿Contributions by plan participants |  |  | 47 |  |  | 28 |  |  | 20 |  |  | 23 |  |  | 67 |  |  | 51
﻿Benefits paid |  |  | (9,789) |  |  | (4,078) |  |  | (2,656) |  |  | (2,424) |  |  | (12,445) |  |  | (6,502)
﻿Settlements |  |  | (47) |  |  | - |  |  | - |  |  | - |  |  | (47) |  |  | -
﻿Foreign currency exchange rate changes |  |  | - |  |  | - |  |  | (6,076) |  |  | (4,465) |  |  | (6,076) |  |  | (4,465)
﻿Fair value of plan assets at end of year |  | $ | 145,886 |  | $ | 135,590 |  | $ | 62,926 |  | $ | 60,663 |  | $ | 208,812 |  | $ | 196,253
﻿Net underfunded status at end of year |  | $ | (15,006) |  | $ | (10,280) |  | $ | (9,131) |  | $ | (1,568) |  | $ | (24,137) |  | $ | (11,848)
﻿
Schedule of Accumulated Benefit Obligations In Excess of and Less Than Fair Value of Plan Assets |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Plans with accumulated benefit obligation in excess of plan assets |  | Plans with accumulated benefit obligation less than plan assets
﻿ |  | At September 30, |  | At September 30,
﻿ |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Projected benefit obligation |  | $ | (220,788) |  | $ | (198,165) |  | $ | (12,161) |  | $ | (9,936)
﻿Accumulated benefit obligation |  |  | (218,769) |  |  | (196,694) |  |  | (10,924) |  |  | (8,918)
﻿Fair value of plan assets |  |  | 196,800 |  |  | 185,623 |  |  | 12,012 |  |  | 10,630
﻿
Schedule of Amounts Recognized in Balance Sheet and Other Comprehensive Income (Loss) |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | At or for the Year Ended September 30,
﻿ |  | United States |  | Other Countries |  | Total
﻿ |  | 2016 |  | 2015 |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Amounts recognized in statement of financial position consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Other non-current assets |  | $ | - |  | $ | - |  | $ | - |  | $ | 694 |  | $ | - |  | $ | 694
﻿Other non-current liabilities |  |  | (15,006) |  |  | (10,280) |  |  | (9,131) |  |  | (2,262) |  |  | (24,137) |  |  | (12,542)
﻿Net underfunded status at end of year |  | $ | (15,006) |  | $ | (10,280) |  | $ | (9,131) |  | $ | (1,568) |  | $ | (24,137) |  | $ | (11,848)
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Amounts recognized in accumulated other comprehensive losses consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Unrecognized net prior service cost |  | $ | 3,857 |  | $ | 4,241 |  | $ | - |  | $ | - |  | $ | 3,857 |  | $ | 4,241
﻿Unrecognized net losses |  |  | 33,682 |  |  | 26,861 |  |  | 20,795 |  |  | 13,618 |  |  | 54,477 |  |  | 40,479
﻿Total amounts recognized |  |  | 37,539 |  |  | 31,102 |  |  | 20,795 |  |  | 13,618 |  |  | 58,334 |  |  | 44,720
﻿Deferred taxes |  |  | (14,305) |  |  | (11,890) |  |  | (7,303) |  |  | (4,817) |  |  | (21,608) |  |  | (16,707)
﻿Amounts recognized in accumulated other comprehensive losses |  | $ | 23,234 |  | $ | 19,212 |  | $ | 13,492 |  | $ | 8,801 |  | $ | 36,726 |  | $ | 28,013
﻿
Schedule of Changes in Plan Assets and Benefit Obligations Recorded in Other Comprehensive Income (Loss) |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Year Ended September 30,
﻿ |  | United States |  | Other Countries |  | Total
﻿ |  | 2016 |  | 2015 |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Accumulated other comprehensive losses at beginning of year |  | $ | 31,102 |  | $ | 14,491 |  | $ | 13,618 |  | $ | 11,902 |  | $ | 44,720 |  | $ | 26,393
﻿Net loss |  |  | 8,160 |  |  | 17,390 |  |  | 9,646 |  |  | 2,771 |  |  | 17,806 |  |  | 20,161
﻿Loss due to settlement or curtailment arising during the period |  |  | (47) |  |  | - |  |  | - |  |  | - |  |  | (47) |  |  | -
﻿Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Net losses |  |  | (1,292) |  |  | (396) |  |  | (246) |  |  | (190) |  |  | (1,538) |  |  | (586)
﻿Prior service cost |  |  | (384) |  |  | (383) |  |  | - |  |  | - |  |  | (384) |  |  | (383)
﻿Foreign currency exchange rate changes |  |  | - |  |  | - |  |  | (2,223) |  |  | (865) |  |  | (2,223) |  |  | (865)
﻿Accumulated other comprehensive losses at end of year |  | $ | 37,539 |  | $ | 31,102 |  | $ | 20,795 |  | $ | 13,618 |  | $ | 58,334 |  | $ | 44,720
﻿
Schedule of Amounts Expected to be Amortized from Accumulated Other Comprehensive Income (Loss) and Reported as a Component of Net Periodic Benefit Cost During the Next Fiscal Year |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | United States |  | Other Countries |  | Total
﻿Prior service cost |  | $ | 383 |  | $ | - |  | $ | 383
﻿Net actuarial losses |  |  | 1,854 |  |  | 533 |  |  | 2,387
﻿
Schedule of Expected Benefit Payments |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿Year Ending September 30, |  | United States |  | Other Countries |  | Total
﻿2017 |  | $ | 6,344 |  | $ | 2,315 |  | $ | 8,659
﻿2018 |  |  | 6,319 |  |  | 2,249 |  |  | 8,568
﻿2019 |  |  | 6,980 |  |  | 2,847 |  |  | 9,827
﻿2020 |  |  | 7,589 |  |  | 2,311 |  |  | 9,900
﻿2021 |  |  | 8,127 |  |  | 2,442 |  |  | 10,569
﻿2022 – 2026 |  |  | 46,705 |  |  | 12,791 |  |  | 59,496
﻿
Schedule of Allocation of Plan Assets, Actual and Target Allocations |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | At September 30,
﻿ |  | 2016 |  | 2015
﻿ |  | Percentage of Plan Assets |  | Target Allocation Ranges |  | Percentage of Plan Assets |  | Target Allocation Ranges
﻿United States: |  |  |  |  |  |  |  |  |  |  |  |
﻿Asset Class |  |  |  |  |  |  |  |  |  |  |  |
﻿Equity Securities |  | 56.4% |  | 40.8% | - | 80.8% |  | 58.2% |  | 40.7% | - | 80.7%
﻿Debt Securities |  | 39.0% |  | 29.2% | - | 49.2% |  | 41.5% |  | 29.3% | - | 49.3%
﻿Other |  | 4.6% |  | 0.0% |  | 0.3% |  | 0.0%
﻿ |  | 100.0% |  |  |  |  |  | 100.0% |  |  |  |
﻿United Kingdom: |  |  |  |  |  |  |  |  |  |  |  |
﻿Asset Class |  |  |  |  |  |  |  |  |  |  |  |
﻿Equity Securities |  | 34.7% |  | 25.0% | - | 45.0% |  | 36.0% |  | 40.0% | - | 70.0%
﻿Debt Securities |  | 65.2% |  | 40.0% | - | 80.0% |  | 63.8% |  | 35.0% | - | 65.0%
﻿Other |  | 0.1% |  | 0.0% |  | 0.2% |  | 0.0%
﻿ |  | 100.0% |  |  |  |  |  | 100.0% |  |  |  |
﻿Japan: |  |  |  |  |  |  |  |  |  |  |  |
﻿Asset Class |  |  |  |  |  |  |  |  |  |  |  |
﻿Equity Securities |  | 40.0% |  | 36.0% | - | 44.0% |  | 38.6% |  | 36.0% | - | 44.0%
﻿Debt Securities |  | 59.1% |  | 55.0% | - | 63.0% |  | 60.4% |  | 55.0% | - | 63.0%
﻿Other |  | 0.9% |  | 0.0% | - | 2.0% |  | 1.0% |  | 0.0% | - | 2.0%
﻿ |  | 100.0% |  |  |  |  |  | 100.0% |  |  |  |
﻿
Schedule of Allocation of Plan Assets, Fair Value Hieracrchy |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | At September 30, 2016
﻿ |  | Level 1 |  | Level 2 |  | Level 3 |  |  |
﻿ |  | United States |  | Other Countries |  | United States |  | Other Countries |  | United States |  | Other Countries |  | Total
﻿Asset Category: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Cash and cash equivalents |  | $ | 6,741 |  | $ | 163 |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | 6,904
﻿Mutual funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿U.S. corporate bond fund |  |  | 56,813 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 56,813
﻿U.S. equity large cap fund |  |  | 48,506 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 48,506
﻿International equity large cap growth fund |  |  | 33,834 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 33,834
﻿Pooled funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Japanese equity securities |  |  | - |  |  | - |  |  | - |  |  | 2,536 |  |  | - |  |  | - |  |  | 2,536
﻿International equity securities |  |  | - |  |  | - |  |  | - |  |  | 2,258 |  |  | - |  |  | - |  |  | 2,258
﻿Japanese fixed income securities |  |  | - |  |  | - |  |  | - |  |  | 5,321 |  |  | - |  |  | - |  |  | 5,321
﻿International fixed income securities |  |  | - |  |  | - |  |  | - |  |  | 1,777 |  |  | - |  |  | - |  |  | 1,777
﻿Index linked U.K. equity fund |  |  | - |  |  | - |  |  | - |  |  | 7,982 |  |  | - |  |  | - |  |  | 7,982
﻿Index linked international equity fund |  |  | - |  |  | - |  |  | - |  |  | 9,694 |  |  | - |  |  | - |  |  | 9,694
﻿Index linked U.K. corporate bonds fund |  |  | - |  |  | - |  |  | - |  |  | 16,180 |  |  | - |  |  | - |  |  | 16,180
﻿Index linked U.K. government securities fund |  |  | - |  |  | - |  |  | - |  |  | 5,009 |  |  | - |  |  | - |  |  | 5,009
﻿Index linked U.K. long-term government securities fund |  |  | - |  |  | - |  |  | - |  |  | 11,998 |  |  | - |  |  | - |  |  | 11,998
﻿Total assets |  | $ | 145,894 |  | $ | 163 |  | $ | - |  | $ | 62,755 |  | $ | - |  | $ | - |  | $ | 208,812
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | At September 30, 2015
﻿ |  | Level 1 |  | Level 2 |  | Level 3 |  |  |
﻿ |  | United States |  | Other Countries |  | United States |  | Other Countries |  | United States |  | Other Countries |  | Total
﻿Asset Category: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Cash and cash equivalents |  | $ | 467 |  | $ | 201 |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | 668
﻿Mutual funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿U.S. corporate bond fund |  |  | 56,210 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 56,210
﻿U.S. equity large cap fund |  |  | 47,517 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 47,517
﻿International equity large cap growth fund |  |  | 31,396 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 31,396
﻿Pooled funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Japanese equity securities |  |  | - |  |  | - |  |  | - |  |  | 2,116 |  |  | - |  |  | - |  |  | 2,116
﻿International equity securities |  |  | - |  |  | - |  |  | - |  |  | 1,982 |  |  | - |  |  | - |  |  | 1,982
﻿Japanese fixed income securities |  |  | - |  |  | - |  |  | - |  |  | 4,805 |  |  | - |  |  | - |  |  | 4,805
﻿International fixed income securities |  |  | - |  |  | - |  |  | - |  |  | 1,624 |  |  | - |  |  | - |  |  | 1,624
﻿Index linked U.K. equity fund |  |  | - |  |  | - |  |  | - |  |  | 8,687 |  |  | - |  |  | - |  |  | 8,687
﻿Index linked international equity fund |  |  | - |  |  | - |  |  | - |  |  | 9,336 |  |  | - |  |  | - |  |  | 9,336
﻿Index linked U.K. corporate bonds fund |  |  | - |  |  | - |  |  | - |  |  | 16,613 |  |  | - |  |  | - |  |  | 16,613
﻿Index linked U.K. government securities fund |  |  | - |  |  | - |  |  | - |  |  | 4,716 |  |  | - |  |  | - |  |  | 4,716
﻿Index linked U.K. long-term government securities fund |  |  | - |  |  | - |  |  | - |  |  | 10,583 |  |  | - |  |  | - |  |  | 10,583
﻿Total assets |  | $ | 135,590 |  | $ | 201 |  | $ | - |  | $ | 60,462 |  | $ | - |  | $ | - |  | $ | 196,253
﻿
United States Pension Plans of US Entity, Defined Benefit [Member] |
Schedule of Actuarial Assumptions Used |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿United States: |  |  |  |  |  |  |  |
﻿Weighted-average assumptions to determine benefit obligation at September 30: |  |  |  |  |  |  |  |
﻿Discount rate | 3.65 | % |  | 4.39 | % |  | 4.40 | %
﻿Rate of compensation increase | n/a |  |  | n/a |  |  | 3.50 |
﻿Weighted-average assumptions to determine periodic benefit costs for years ended September 30: |  |  |  |  |  |  |  |
﻿Discount rate | 4.39 |  |  | 4.40 |  |  | 5.15 |
﻿Rate of compensation increase | n/a |  |  | n/a |  |  | 3.50 |
﻿Long-term rate of return on plan assets | 7.62 |  |  | 7.62 |  |  | 7.62 |
﻿
United Kingdom Plan, Defined Benefit [Member] |
Schedule of Actuarial Assumptions Used |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿United Kingdom: |  |  |  |  |  |  |  |
﻿Weighted-average assumptions to determine benefit obligation at September 30: |  |  |  |  |  |  |  |
﻿Discount rate | 2.28 | % |  | 3.75 | % |  | 4.10 | %
﻿Rate of compensation increase | 3.40 |  |  | 3.40 |  |  | 3.50 |
﻿Weighted-average assumptions to determine periodic benefit costs for years ended September 30: |  |  |  |  |  |  |  |
﻿Discount rate - service cost | 3.86 |  |  | 4.10 |  |  | 4.50 |
﻿Discount rate - interest cost | 3.63 |  |  | 4.10 |  |  | 4.50 |
﻿Rate of compensation increase | 3.40 |  |  | 3.50 |  |  | 3.50 |
﻿Long-term rate of return on plan assets | 5.00 |  |  | 5.50 |  |  | 5.50 |
﻿
Japan Plan, Defined Benefit [Member] |
Schedule of Actuarial Assumptions Used |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿Japan: |  |  |  |  |  |  |  |
﻿Weighted-average assumptions to determine benefit obligation at September 30: |  |  |  |  |  |  |  |
﻿Discount rate | 0.46 | % |  | 0.97 | % |  | 1.10 | %
﻿Rate of compensation increase | 2.02 |  |  | 2.00 |  |  | 2.00 |
﻿Weighted-average assumptions to determine periodic benefit costs for years ended September 30: |  |  |  |  |  |  |  |
﻿Discount rate - service cost | 1.27 |  |  | 1.10 |  |  | 1.25 |
﻿Discount rate - interest cost | 0.59 |  |  | 1.10 |  |  | 1.25 |
﻿Rate of compensation increase | 2.00 |  |  | 2.00 |  |  | 2.00 |
﻿Long-term rate of return on plan assets | 3.00 |  |  | 3.00 |  |  | 3.00 |
﻿
Switzerland Plan, Defined Benefit [Member] |
Schedule of Actuarial Assumptions Used |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿Switzerland: |  |  |  |  |  |  |  |
﻿Weighted-average assumptions to determine benefit obligation at September 30: |  |  |  |  |  |  |  |
﻿Discount rate | n/a |  |  | n/a |  |  | n/a |
﻿Rate of compensation increase | n/a |  |  | n/a |  |  | n/a |
﻿Weighted-average assumptions to determine periodic benefit costs for years ended September 30: |  |  |  |  |  |  |  |
﻿Discount rate | n/a |  |  | n/a |  |  | 2.25 | %
﻿Rate of compensation increase | n/a |  |  | n/a |  |  | 2.00 |
﻿Long-term rate of return on plan assets | n/a |  |  | n/a |  |  | 2.25 |
﻿
Multiemployer Plan [Member] |
Schedule of Costs of Retirement Plans |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  | Year Ended September 30,
﻿ |  | 2016 |  | 2015 |  | 2014
﻿Company contributions |  | $ | 475 |  | $ | 600 |  | $ | 728
﻿
Defined Contribution Plan [Member] |
Schedule of Costs of Retirement Plans |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  | Year Ended September 30,
﻿ |  | 2016 |  | 2015 |  | 2014
﻿Company costs |  | $ | 31,893 |  | $ | 30,933 |  | $ | 24,921
﻿
Other Postretirement Benefit Plans, Defined Benefit [Member] |
Schedule of Actuarial Assumptions Used |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿Weighted-average discount rate used to determine benefit obligation at September 30 | 3.63 | % |  | 4.01 | % |  | 4.40 | %
﻿Weighted-average discount rate used to determine net periodic benefit cost for years ended September 30 | 4.01 |  |  | 4.40 |  |  | 5.14 |
﻿
Schedule of Net Periodic Benefit Costs |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Year Ended September 30,
﻿ |  | 2016 |  | 2015 |  | 2014
﻿Service cost |  | $ | 22 |  | $ | 30 |  | $ | 47
﻿Interest cost |  |  | 1,048 |  |  | 1,233 |  |  | 1,432
﻿Amortization of: |  |  |  |  |  |  |  |  |
﻿Net (gains) losses |  |  | 156 |  |  | (73) |  |  | (200)
﻿Net prior service benefit |  |  | (158) |  |  | (158) |  |  | (158)
﻿Net periodic cost |  | $ | 1,068 |  | $ | 1,032 |  | $ | 1,121
﻿
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Year Ended September 30,
﻿ |  | 2016 |  | 2015
﻿Changes in accumulated postretirement benefit obligation: |  |  |  |  |  |
﻿Accumulated postretirement benefit obligation at beginning of year |  | $ | 34,927 |  | $ | 29,225
﻿Service cost |  |  | 22 |  |  | 30
﻿Interest cost |  |  | 1,048 |  |  | 1,233
﻿Premiums paid by plan participants |  |  | 1,299 |  |  | 1,613
﻿Net actuarial losses |  |  | 1,912 |  |  | 6,705
﻿Benefits paid |  |  | (3,503) |  |  | (3,848)
﻿Foreign currency exchange rate changes |  |  | (75) |  |  | (31)
﻿Accumulated postretirement benefit obligation at end of year |  | $ | 35,630 |  | $ | 34,927
﻿Changes in fair value of plan assets: |  |  |  |  |  |
﻿Fair value of plan assets at beginning of year |  | $ | - |  | $ | -
﻿Contributions by the Company |  |  | 2,204 |  |  | 2,235
﻿Premiums paid by plan participants |  |  | 1,299 |  |  | 1,613
﻿Benefits paid |  |  | (3,503) |  |  | (3,848)
﻿ Fair value of plan assets at end of year |  | $ | - |  | $ | -
﻿Net underfunded status at end of year |  | $ | (35,630) |  | $ | (34,927)
﻿
Schedule of Amounts Recognized in Balance Sheet and Other Comprehensive Income (Loss) |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Year Ended September 30,
﻿ |  | 2016 |  | 2015
﻿Amounts recognized in statement of financial position consist of: |  |  |  |  |  |
﻿Accrued liabilities |  | $ | (2,505) |  | $ | (2,481)
﻿Other non-current liabilities |  |  | (33,125) |  |  | (32,446)
﻿Funded status at end of year |  | $ | (35,630) |  | $ | (34,927)
﻿ |  |  |  |  |  |
﻿Amounts recognized in accumulated other comprehensive losses consist of: |  |  |  |  |  |
﻿Unrecognized net prior service benefit |  | $ | (318) |  | $ | (477)
﻿Unrecognized net losses |  |  | 5,484 |  |  | 3,745
﻿Total amounts recognized |  |  | 5,166 |  |  | 3,268
﻿Deferred taxes |  |  | (1,979) |  |  | (1,267)
﻿Amounts recognized in accumulated other comprehensive losses |  | $ | 3,187 |  | $ | 2,001
﻿
Schedule of Changes in Plan Assets and Benefit Obligations Recorded in Other Comprehensive Income (Loss) |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Year Ended September 30,
﻿ |  | 2016 |  | 2015
﻿Accumulated other comprehensive losses (earnings) at beginning of year |  | $ | 3,268 |  | $ | (3,666)
﻿Net (gain) loss |  |  | 1,912 |  |  | 6,705
﻿Amortization of: |  |  |  |  |  |
﻿Net gains (losses) |  |  | (156) |  |  | 73
﻿Prior service benefit (cost) |  |  | 158 |  |  | 158
﻿Foreign currency exchange rate changes |  |  | (16) |  |  | (2)
﻿Accumulated other comprehensive losses at end of year |  | $ | 5,166 |  | $ | 3,268
﻿
Schedule of Health Care Cost Trend Rates |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | 2016 |  | 2015
﻿Health care cost trend rate assumed for next year |  |  |  | 7.00 | % |  | 7.00 | %
﻿Rate to which the cost trend rate is assumed to decline |  |  |  |  |  |  |  |
﻿(the ultimate trend rate) |  |  |  | 5.00 | % |  | 5.00 | %
﻿Year that the rate reaches the ultimate trend rate |  |  |  | 2025 |  |  | 2024 |
﻿
Schedule of Health Care Costs Sensitivity |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  |  | Change In Health Care Cost Trend Rate
﻿ |  |  | 1% increase |  | 1% decrease
﻿Effect on projected fiscal year 2017 service and interest cost |  |  | $ | 126 |  | $ | (110)
﻿Effect on accumulated postretirement benefit obligation at September 30, 2016 |  |  |  | 3,415 |  |  | (2,993)
﻿
Schedule of Future Postretirement Company Contributions |
﻿ |  |  |
﻿ |  |  |
﻿Year Ending September 30, |  |  |
﻿2017 |  | $ | 4,039
﻿2018 |  |  | 4,066
﻿2019 |  |  | 4,096
﻿2020 |  |  | 4,080
﻿2021 |  |  | 4,060
﻿2022 – 2026 |  |  | 19,306
﻿

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