Employee medical claims paid.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Long-term contract for purchase of water service estimated monthly cost per water account.

+ References

No definition available.

+ Details

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- Definition

Services agreement contract term.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Cash received for royalties during the current period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
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Period Type:	duration

- Definition

Amount of transactions with related party during the financial reporting period.

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Balance Type:	debit
Period Type:	duration

- Definition

Date of maturity or expiration of arrangements with a related party (for example, but not limited to, leasing and debt arrangements between related parties), in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

+ Details

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Balance Type:	debit
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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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount the entity has committed to make for future royalty guarantees.

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-Topic 928
-SubTopic 440
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473578&loc=d3e63223-108013

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Balance Type:	credit
Period Type:	instant

- Definition

Ancillary revenue earned during the period from the consideration paid to the entity for the use of its rights and property by another party. Examples include licensing the use of copyrighted materials and leasing the extraction of natural resources.

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-Section S99
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Transactions With Related Parties - Additional Information (Details)			12 Months Ended		48 Months Ended
	Nov. 17, 2016 USD ($) $ / Wateraccount	Nov. 16, 2016 $ / Wateraccount	Dec. 31, 2019 USD ($) $ / Wateraccount	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Related Party Transaction [Line Items]
Employee medical claims paid			$ 300,000	$ 500,000
Due from affiliates			$ 426,000	406,000	$ 406,000
Global Water Management
Related Party Transaction [Line Items]
Purchase agreement period			10 years
Services agreement contract term			10 years
Amended services agreement, Maturity date	Dec. 31, 2026
Estimated cost per water account/month \| $ / Wateraccount	7.79	6.24	6.43
Royalty Income, Nonoperating			$ 400,000
Global Water Management \| Maximum
Related Party Transaction [Line Items]
Royalty payments (up to $15.0 million)			15,000,000.0
Proceeds from Royalties Received					$ 2,300,000
Global Water Management \| Meter Replacement
Related Party Transaction [Line Items]
Meter replacement program cost	$ 11,400,000
Global Water Management \| FATHOM Services
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			$ 1,700,000	$ 1,600,000