Accelerated amortization expense

No definition available.

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- Definition

Accelerated amortization expense (termination/sale)

+ References

No definition available.

+ Details

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- Definition

Accrued Patent Acquisition Related Payments

+ References

No definition available.

+ Details

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- Definition

Acquired Finite Lived Intangible Asset, Useful Life

+ References

No definition available.

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- Definition

Patents, Accumulated Amortization

+ References

No definition available.

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- Definition

Patents, Gross

+ References

No definition available.

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- Definition

Carrying value for patents, net of accumulated amortization.

+ References

No definition available.

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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.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

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- Definition

The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

+ 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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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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Patents (Details) - USD ($)	3 Months Ended								12 Months Ended
Patents (Details) - USD ($)	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Patents [Line Items]
Patents, net	$ 86,319,000				$ 162,642,000				$ 86,319,000	$ 162,642,000
Patents, weighted average useful life									5 years
Payments to acquire intangible assets									$ 1,225,000	19,504,000	$ 42,746,000
Accrued patent acquisition related payments					1,000,000					1,000,000	16,700,000
Accelerated amortization expense									225,000	0	1,247,000
Accelerated amortization expense (termination)									0	380,000	2,702,000
Impairment of Patent-Related Intangible Assets	2,175,000	$ 0	$ 40,165,000	$ 0	74,731,000	$ 0	$ 0	$ 0	$ 42,340,000	74,731,000	$ 3,497,000
Minimum [Member]
Patents [Line Items]
Patents, useful life									1 year
Acquired Finite Lived Intangible Asset, Useful Life									2 years
Maximum [Member]
Patents [Line Items]
Patents, useful life									10 years
Acquired Finite Lived Intangible Asset, Useful Life									10 years
Patents [Member]
Patents [Line Items]
Gross carrying amount - patents	444,362,000				444,137,000				$ 444,362,000	444,137,000
Accumulated amortization - patents	358,043,000				281,495,000				358,043,000	281,495,000
Patents, net	$ 86,319,000				$ 162,642,000				$ 86,319,000	$ 162,642,000
Patents [Member] \| Minimum [Member]
Patents [Line Items]
Patents, useful life									1 year
Patents [Member] \| Maximum [Member]
Patents [Line Items]
Patents, useful life									7 years