Pension Plan and Employee Benefits - Projected Benefit Payments and Projected Receipts (Details) $ in Thousands	Dec. 31, 2021 USD ($)
PENSION BENEFITS
For the year ending Dec. 31,
2022	$ 29,239
2023	29,833
2024	30,566
2025	31,578
2026	32,339
Next five years	170,382
OTHER BENEFITS
For the year ending Dec. 31,
2022	5,253
2023	5,079
2024	4,902
2025	4,759
2026	4,682
Next five years	21,553
SERP BENEFITS
For the year ending Dec. 31,
2022	4,722
2023	4,840
2024	4,908
2025	5,054
2026	5,175
Next five years	$ 25,391

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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