XML 54 R42.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Retirement Benefits (Tables) | 3 Months Ended
--- | ---
Dec. 31, 2016
Schedule of Estimated Remaining Cash Contributions |
﻿ |  |  |
﻿ |  |  |
﻿Retirement pension benefits: |  |  |
﻿United States |  | $ | -
﻿United Kingdom |  |  | 323
﻿Japan |  |  | -
﻿Other postretirement benefits |  |  | 3,424
﻿
Pension Plans, Defined Benefit [Member] |
Schedule of Net Periodic Benefit Costs |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three-Months Ended December 31,
﻿ |  | United States |  | Other Countries |  | Total
﻿ |  | 2016 |  | 2015 |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Service cost |  | $ | 419 |  | $ | 674 |  | $ | 192 |  | $ | 186 |  | $ | 611 |  | $ | 860
﻿Interest cost |  |  | 1,439 |  |  | 1,317 |  |  | 296 |  |  | 435 |  |  | 1,735 |  |  | 1,752
﻿Expected return on plan assets |  |  | (2,632) |  |  | (2,542) |  |  | (641) |  |  | (697) |  |  | (3,273) |  |  | (3,239)
﻿Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Net actuarial loss |  |  | 464 |  |  | 323 |  |  | 127 |  |  | 65 |  |  | 591 |  |  | 388
﻿Prior service cost |  |  | 96 |  |  | 96 |  |  | - |  |  | - |  |  | 96 |  |  | 96
﻿Net periodic retirement pension benefit |  | $ | (214) |  | $ | (132) |  | $ | (26) |  | $ | (11) |  | $ | (240) |  | $ | (143)
﻿Contributions paid |  | $ | - |  | $ | - |  | $ | 365 |  | $ | 389 |  | $ | 365 |  | $ | 389
﻿
Multiemployer Plan [Member] |
Schedule of Costs of Retirement Plans |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three-Months Ended
﻿ |  | December 31,
﻿ |  | 2016 |  | 2015
﻿Company contributions |  | $ | 68 |  | $ | 130
﻿
Defined Contribution Plan [Member] |
Schedule of Costs of Retirement Plans |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three-Months Ended
﻿ |  | December 31,
﻿ |  | 2016 |  | 2015
﻿Company costs |  | $ | 7,249 |  | $ | 8,004
﻿
Other Postretirement Benefit Plans, Defined Benefit [Member] |
Schedule of Net Periodic Benefit Costs |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three-Months Ended
﻿ |  | December 31,
﻿ |  | 2016 |  | 2015
﻿Service cost |  | $ | 4 |  | $ | 5
﻿Interest cost |  |  | 311 |  |  | 262
﻿Amortization of: |  |  |  |  |  |
﻿Net actuarial loss |  |  | 50 |  |  | 39
﻿Prior service benefit |  |  | (40) |  |  | (40)
﻿Net periodic other postretirement cost |  | $ | 325 |  | $ | 266
﻿Contributions paid |  | $ | 615 |  | $ | 381
﻿

X
- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfCostsOfRetirementPlansTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the cash contributions to retirement benefit plans. The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan in the current remaining fiscal period. + References No definition available. + Details
Name: | wwd_ScheduleOfCashContributionsToRetirementBenefitPlanTableTextBlock
Namespace Prefix: | wwd_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=wwd_MultiemployerPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=wwd_DefinedContributionPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |