Business combination transaction value on average of share price.

No definition available.

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- Definition

Goodwill, Measurement Period Adjustments

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

+ Details

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Balance Type:	na
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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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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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+ Details

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Balance Type:	debit
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Business Combinations (Narrative) (Details) - USD ($) shares in Millions		9 Months Ended	12 Months Ended
	Sep. 21, 2019	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 855,453,000	$ 855,453,000	$ 790,972,000
MidSouth [Member]
Business Acquisition [Line Items]
Net assets acquired	$ 130,500,000	130,480,000
Goodwill	$ 63,400,000	63,369,000
Shares issued	5.0
Business combination transaction value on an average of share price	$ 193,800,000
Goodwill, Measurement period adjustments		$ 0	$ (5,838,000)