Stock Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2019
Disclosure of Repurchase Agreements [Abstract]
Stock repurchase program, authorized amount	$ 4.5			$ 7.5
Stock repurchased (in shares)	0	0	47,504
Stock repurchased (in USD per share)			$ 36.93

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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