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Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stock issued during period, shares, Scottdale shareholders	1,878,827
Stock issued during period shares, Director Stock Purchase Plans	938
Common Stock [Member]
Stock issued during period, shares, Employee Stock Purchase Plans	736	1,264

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Number of shares of stock issued during the period pursuant to acquisitions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Number of shares issued during the period as a result of an employee stock purchase plan.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Topic 210
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