Consolidated Statements of Changes in Shareholders' Equity (Shares) - shares	Total	Preferred Shares	Common Shares
Balance (in shares) at Dec. 31, 2016		0	108,103,000
Increase (Decrease) in Stockholders' Equity (in share) [Roll Forward]
Share-based compensation (in shares)		0	1,159,000
Issuance of common shares		0	23,000,000
Balance (in shares) at Dec. 31, 2017		0	132,262,000
Increase (Decrease) in Stockholders' Equity (in share) [Roll Forward]
Share-based compensation (in shares)		0	1,696,000
Issuance of common shares		9,042,000	31,974,000
Balance (in shares) at Dec. 31, 2018	166,392,479	9,042,000	165,932,000
Increase (Decrease) in Stockholders' Equity (in share) [Roll Forward]
Share-based compensation (in shares)		0	3,624,000
Balance (in shares) at Dec. 31, 2019	171,656,039	9,042,000	169,556,000