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Summary of Significant Accounting Policies:Labor Concentration and Unions (Details)	12 Months Ended
	Dec. 31, 2020 employee Integer6
Concentration Risk [Line Items]
Entity Number of Employees | employee	5,970
Number of collective bargaining arrangements | Integer6	10
Number of Collective Bargaining Agreements Set to Expire Within One Year | Integer6	2
Workforce Subject to Collective Bargaining Arrangements [Member] | Unionized Employees Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	22.00%
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member]
Concentration Risk [Line Items]
Entity Number of Employees | employee	740

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- Definition

The number of collective bargaining agreements set to expire within one year

+ References

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- Definition

The number of collective bargaining arrangements the entity is subject to.

+ References

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- Definition

Number of persons employed by the Entity

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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-Publisher FASB
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