Description of Business and Significant Accounting Policies (Details)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Total Billings [Member] | Customer Concentration Risk [Member] | Largest Customer [Member]
Business Acquisition [Line Items]
Concentration percentage	16.00%	16.00%
Total Billings [Member] | Customer Concentration Risk [Member] | Second Largest [Member]
Business Acquisition [Line Items]
Concentration percentage	10.00%	10.00%
Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Stock [Member]
Business Acquisition [Line Items]
Preferred stock, dividend rate		8.50%	8.50%
Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Stock [Member]
Business Acquisition [Line Items]
Preferred stock, dividend rate		8.50%	8.50%