Subsequent Events (Details) $ / shares in Units, shares in Thousands	1 Months Ended			3 Months Ended	12 Months Ended
	Feb. 29, 2020 USD ($) $ / shares	Jan. 31, 2020 USD ($) MWh shares	Nov. 30, 2019 USD ($)	Dec. 31, 2017 USD ($) shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 $ / shares
Subsequent Event [Line Items]
Issuance of common stock (in shares) | shares				572,432
Dividends declared (in dollars per share) | $ / shares					$ 0.1176	$ 0.0588	$ 0.0147
Dividends declared				$ 503,000	$ 9,414,000	$ 2,961,000
Increase in authorized amount under stock repurchase program			$ 5,000,000.0
Subsequent Event
Subsequent Event [Line Items]
Proceeds from borrowings under credit facility		$ 20,000,000
Dividends declared	$ 2,800,000
Increase in authorized amount under stock repurchase program	$ 20,000,000.0
Switch, Ltd. | Subsequent Event
Subsequent Event [Line Items]
Cash distributions to common unit holders (in dollars per share) | $ / shares	$ 0.0294
Cash distributions declared	$ 7,100,000
Class A
Subsequent Event [Line Items]
Issuance of common stock (in shares) | shares					34,000	19,100
Class A | Subsequent Event
Subsequent Event [Line Items]
Issuance of common stock (in shares) | shares		4,600
Dividends declared (in dollars per share) | $ / shares	$ 0.0294
Power Purchase and Sale Agreement - January 1, 2020 | Subsequent Event
Subsequent Event [Line Items]
Purchase commitment		$ 20,000,000
Five-Month Power Purchase and Sale Agreement - January 1, 2020 | Energy | Subsequent Event
Subsequent Event [Line Items]
Quantity required under purchase commitment (in megawatts per hour) | MWh		60
Term of purchase commitment		1 year