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Income Taxes: Net Operating Loss Carryforwards (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 476,033
Operating Loss Carryforwards, With no Expiration Date	607,465
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	572,203
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	800
State and Local Jurisdiction | Valuation Allowance, Operating Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards Valuation Allowance	1,100
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 0

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Operating Loss Carryforwards, With no Expiration Date

+ References

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

+ References

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

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