v3.25.2

Common stock buyback program: (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended	6 Months Ended
	Jul. 31, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2025	Jun. 30, 2024	Aug. 06, 2025
Common stock buyback program:
Purchase of common stock under buyback program (in shares)		153,322	229,507
Purchase of common stock under buy back program		$ 8,000	$ 11,500	$ 11,517	$ 7,968
Average share price		$ 51.97	$ 50.18
Subsequent Events
Common stock buyback program:
Purchase of common stock under buyback program (in shares)	63,487
Purchase of common stock under buy back program	$ 3,100
Average share price	$ 48.13
Increase in authorized amount						$ 100,000
Remaining authorized amount for common stock repurchases	$ 107,900

Amount of authorization increased for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

No definition available.

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- References

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-Topic 505
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-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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- Definition

The cash outflow to reacquire common stock during the period.

+ References

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- Definition

Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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COGENT COMMUNICATIONS HOLDINGS, INC. 10-Q