Share Capital - Share Repurchase Program (Details) - Common Stock	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Equity, Class of Treasury Stock [Line Items]
Stock repurchased program, weighted average price (in dollars per shares) | $ / shares	$ 1.87
Share repurchased during period (in shares) | shares	20,097,471
2019 Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, number of shares authorized to be repurchased (in shares) | shares	19,353,951
Stock repurchase program, number of shares authorized to be repurchased, percent of issued and outstanding shares of common stock (percent)	5.00%
Stock repurchased program, weighted average price (in dollars per shares) | $ / shares	$ 1.85
2018 Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchased program, weighted average price (in dollars per shares) | $ / shares	$ 2.34
Share repurchased during period (in shares) | shares	743,520