Description of Business and Significant Accounting Policies (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Total Billings [Member] | Customer Concentration Risk [Member]
Business Acquisition [Line Items]
Concentration percentage	13.00%
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%