Finance Obligation - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Sale Leaseback Transaction [Line Items]
Total finance lease liabilities	$ 29,329
Short term finance lease obligation	4,718	$ 903
Long term finance lease obligation	24,611	4,493
Sale Leaseback Agreements
Sale Leaseback Transaction [Line Items]
Total finance lease liabilities	16,993	23,900
Short term finance lease obligation	4,500	8,000
Long term finance lease obligation	12,500	15,900
Sale Leaseback Agreements \| Future Services [Member]
Sale Leaseback Transaction [Line Items]
Total finance lease liabilities	236,600	157,700
Short term finance lease obligation	37,500	24,700
Long term finance lease obligation	$ 199,100	$ 132,900

Present value of lessee's discounted obligation for lease payments from finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

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- Definition

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+ References

No definition available.

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