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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Equity (Details) - USD ($)	Jan. 19, 2012	Nov. 10, 2020
2012 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Maximum repurchase percentage of outstanding shares	10.00%
2020 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program authorized amount		$ 100,000,000