Common Stock - Reconciliation of Changes in Common Shares Issued and Additional Disclosures (Details)			3 Months Ended
	May 05, 2020 shares	Nov. 09, 2009 series $ / shares shares	Mar. 31, 2020 $ / shares shares	Dec. 31, 2019 $ / shares shares
Stockholders' Equity, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock, shares authorized (in shares)		80,000,000	80,000,000	80,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)		100,000	100,000	100,000
Preferred stock, minimum number of series authorized (series) | series		1
Preferred stock, at par value (in dollars per share) | $ / shares		$ 0.0001	$ 0.0001	$ 0.0001
Reconciliation of changes in common shares issued
Shares issued at December 31, 2019			63,656,897
Issued as restricted stock award grants			681,190
Shares issued at March 31, 2020			64,338,087
Subsequent event
Stockholders' Equity, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock, shares authorized (in shares)	140,000,000.0
Common stock, number of additional shares authorized (in shares)	60,000,000.0