Accelerated Delivery Notice Period

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- Definition

Construction Agreement, Consideration

+ References

No definition available.

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- Definition

Construction Agreement, Percent Due Upon Delivery of Order

+ References

No definition available.

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- Definition

Construction Agreement, Percent Due Upon Placement of Order

+ References

No definition available.

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- Definition

Impairment of Long-Lived Assets to be Disposed of, Net of Tax

+ References

No definition available.

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- Definition

Insurance Recoveries, Cash Recovered to Date

+ References

No definition available.

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- Definition

Insurance Recoveries Effect on Earnings Per Share Diluted, after Tax

+ References

No definition available.

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- Definition

Insurance Recoveries, Net of Tax

+ References

No definition available.

+ Details

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Definition

After tax earnings per share or per unit impact arising from asset impairment.

+ References

No definition available.

+ Details

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2611-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Definition

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

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- Definition

The cash outflow from construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Property and Equipment - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended				9 Months Ended
	Dec. 31, 2015	Dec. 17, 2015	May 31, 2016	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016
Property, Plant and Equipment
Asset impairment				$ (659)		$ 0		$ 64,773	$ 60,777
Loss on sale of equipment				0		$ (27)		(77)	$ (15,362)
Construction agreement percent due upon placement of order			20.00%
Construction agreement percent due upon delivery of order			80.00%
Atwood Falcon
Property, Plant and Equipment
Asset impairment					$ 64,700			64,800
Impairment, net of tax					$ 64,700
Impairment effect on earnings per share, after tax (in dollars per share)					$ 1.00
Atwood Falcon \| Equipment
Property, Plant and Equipment
Asset impairment					$ 53,000
Atwood Falcon \| Inventory
Property, Plant and Equipment
Asset impairment					11,700
Atwood Hunter
Property, Plant and Equipment
Asset impairment							$ 60,800
Impairment, net of tax							$ 56,100	$ 5,500
Impairment effect on earnings per share, after tax (in dollars per share)							$ 0.86	$ 0.08
Loss on sale of equipment								$ 5,500
Atwood Hunter \| Equipment
Property, Plant and Equipment
Asset impairment							$ 48,000
Atwood Hunter \| Inventory
Property, Plant and Equipment
Asset impairment							$ 8,400
Atwood Osprey
Property, Plant and Equipment
Insurance recoveries					18,000
Insurance recoveries, net of tax					$ 18,000
Insurance recoveries effect on earnings per share, after tax (in dollars per share)					$ 0.28
Insurance receivables				$ 11,800				11,800		$ 6,700
Atwood Southern Cross
Property, Plant and Equipment
Impairment, net of tax								$ 7,100
Impairment effect on earnings per share, after tax (in dollars per share)								$ 0.11
Loss on sale of equipment								$ 8,000
Atwood Admiral
Property, Plant and Equipment
Accelerated delivery notice period								45 days
Atwood Admiral \| Capital Addition Purchase Commitments
Property, Plant and Equipment
Payments for construction projects	$ 50,000
Atwood Admiral \| Capital Addition Purchase Commitments \| Final Payment
Property, Plant and Equipment
Commitments on drilling units under construction		$ 93,900
Atwood Archer
Property, Plant and Equipment
Accelerated delivery notice period								45 days
Atwood Archer \| Capital Addition Purchase Commitments
Property, Plant and Equipment
Payments for construction projects	$ 50,000
Atwood Archer \| Capital Addition Purchase Commitments \| Final Payment
Property, Plant and Equipment
Commitments on drilling units under construction		$ 305,900
Atwood Condor [Member] \| Capital Addition Purchase Commitments
Property, Plant and Equipment
Construction agreement consideration			$ 19,000