Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Other Intangibles (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-lived intangible assets:
Goodwill, impairment loss	$ 0	$ 0	$ 0
Remaining amortization period	10 years
Minimum
Finite-lived intangible assets:
Finite-lived intangible asset, useful life	3 years
Maximum
Finite-lived intangible assets:
Finite-lived intangible asset, useful life	20 years