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Revenue Recognition - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Revenue Recognition And Deferred Revenue [Abstract]
Aggregate amount of transaction price allocated to material rights that remain unsatisfied	$ 1,567
Revenue expected to be recognized in next 6 months	55.00%
Revenue expected to be recognized in 2020	26.00%
Revenue expected to be recognized in 2021	11.00%
Revenue expected to be recognized in 2022	4.00%
Revenue expected to be recognized in 2023	4.00%

X

- Definition

Deferred revenue expected to be recognized in remainder of fiscal year.

+ References

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X

- Definition

Deferred revenue expected to be recognized in year five.

+ References

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+ Details

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X

- Definition

Deferred revenue expected to be recognized in year four.

+ References

No definition available.

+ Details

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X

- Definition

Deferred revenue expected to be recognized in year three.

+ References

No definition available.

+ Details

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- Definition

Deferred revenue expected to be recognized in year two.

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045

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