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Fair Value Disclosures - Assets Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Interest rate derivatives
Assets:
Interest rate derivatives	$ 1,700
Recurring | Interest rate derivatives
Assets:
Interest rate derivatives	1,665	$ 1,998
Recurring | SERP
Assets:
SERP	2,307	2,142
Recurring | Level 1 | Interest rate derivatives
Assets:
Interest rate derivatives	0	0
Recurring | Level 1 | SERP
Assets:
SERP	0	0
Recurring | Level 2 | Interest rate derivatives
Assets:
Interest rate derivatives	1,665	1,998
Recurring | Level 2 | SERP
Assets:
SERP	2,307	2,142
Recurring | Level 3 | Interest rate derivatives
Assets:
Interest rate derivatives	0	0
Recurring | Level 3 | SERP
Assets:
SERP	$ 0	$ 0

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 55
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 50
-Paragraph 3
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-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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