Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Share Repurchases [Line Items]
Share repurchases	641,428	0	182,951	641,428
Purchase of common stock	$ 85,000		$ 21,637	$ 85,000	$ 21,637
Treasury Stock Acquired, Average Cost Per Share	$ 132.52		$ 118.27	$ 132.52
Remaining number of shares authorized to be repurchased	19,175,621			19,175,621
November 2020 Authorization
Share Repurchases [Line Items]
Number of shares authorized to be repurchased	20,000,000			20,000,000

Share repurchase [Line Items]

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- Definition

The cash outflow to reacquire common stock during the period.

+ References

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-Publisher FASB
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-Topic 230
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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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