Number of new stock issued during the period.

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Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

BASIS OF PRESENTATION - Secondary public offering (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 22, 2021	Mar. 31, 2021
Common Stock
Issuance of stock
Issuance of common stock, Stock offering (in shares)		2,804,878
Secondary public offering, February 22, 2021
Issuance of stock
Aggregate gross proceeds	$ 115,000
Secondary public offering, February 22, 2021 \| Common Stock
Issuance of stock
Issuance of common stock, Stock offering (in shares)	2,804,878
Share price (in dollars per share)	$ 41.00
Secondary public offering, February 22, 2021, Underwriters' option \| Common Stock
Issuance of stock
Issuance of common stock, Stock offering (in shares)	365,853