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Earnings Per Share - (Computations for Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net income (loss)	$ (4,033)	$ 2,105	$ 7,024	$ 10,919
Weighted-average common shares outstanding — basic	66,071	65,646	65,959	65,458
Effect of stock options and restricted stock units		491	521	729
Weighted-average common shares outstanding — diluted	66,071	66,137	66,480	66,187
Earnings (loss) per share — basic	$ (0.06)	$ 0.03	$ 0.11	$ 0.17
Earnings (loss) per share — diluted	$ (0.06)	$ 0.03	$ 0.11	$ 0.16

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-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1505-109256

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1448-109256

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration