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Revenue Recognition (Contract Balances) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Trade accounts receivable, net
Balance, January 1, 2020	$ 15,444
Balance, March 31, 2020	21,122
Increase (decrease) in accounts receivable	5,678
Contract liability (current)
Balance, January 1, 2020	944
Balance, March 31, 2020	942
Increase (decrease) in contract liability (current)	(2)
Contract liability (long-term)
Balance, January 1, 2020	2,153
Balance, March 31, 2020	1,918
Increase (decrease) in contract liability (long-term)	$ (235)

X

- Definition

Change in Contract with Customer, Asset [Roll Forward]

+ References

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Change in Contract with Customer, Current Liability [Roll Forward]

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- Definition

Change in Contract with Customer, Noncurrent Liability [Roll Forward]

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- Definition

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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