Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Common stock, shares authorized (in shares)	150,000,000
Common stock, shares issued (in shares)	88,983,171		88,161,638
Common stock, shares outstanding (in shares)	83,969,991		83,148,458
Preference shares issued (in shares)	18,600,000
Undesignated shares (in shares)	42,416,829
Shares repurchased for tax withholding (in shares)	0	182
Shares repurchased for tax withholding, price per share (in dollars per share)		$ 1.48
Treasury shares repurchased (in shares)	0	0
Stock repurchase program, remaining authorized repurchase amount	$ 74,245		$ 74,245