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Revenue Recognition - Changes in Company's Contract Liabilities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Change in Contract with Customer, Asset [Abstract]
Balance as of December 31, 2019	$ 0
Revenues recognized	1,538
Balance as of June 30, 2020	1,538
Change in Contract with Customer, Liability [Abstract]
Balance as of December 31, 2019	2,105
Cash received	1,769
Revenues recognized	(234)
Balance as of June 30, 2020	$ 3,640

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- Definition

Contract with Customer, Liability, Cash Received

+ References

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- Definition

Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (b)
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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

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-Publisher FASB
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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

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