Condensed Consolidated Statement of Shareholders' Equity (Unaudited) (Parenthetical) - shares	3 Months Ended
Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Purchase of treasury stock (in shares)	119,831	149,376	180,827	27,069

Number of shares that have been repurchased during the period and are being held in treasury.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Name:	us-gaap_TreasuryStockSharesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration