Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedule of Estimated Economic Useful Lives of Property Plant and Equipment

Excluding the regulated business at MIC Hawaii, the estimated economic useful lives range is summarized in the table below:

Buildings	20 to 30 years
Leasehold and land improvements	8 to 30 years
Machinery and equipment	3 to 30 years
Furniture and fixtures	5 to 15 years

Schedule of Estimated Useful Lives of Intangible Assets

The cost of intangible assets with determinable useful lives is amortized over their estimated useful lives ranging as follows:

Customer relationships	5 to 30 years
Contractual arrangements	8 to 57 years
Non-compete agreements	3 to 10 years
Trade names	20 years
Technology	5 years