Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized	65,000,000
Common stock, shares issued	9,371,000
Common stock, shares outstanding (in shares)	9,371,000
Predecessor
Preferred stock, par value (in dollars per share)		$ 0.001
Preferred stock, shares authorized		5,000,000
Preferred stock, shares issued		1,495,000
Preferred stock, shares outstanding		1,495,000
Common stock, par value (in dollars per share)		$ 0.001
Common stock, shares authorized		150,000,000
Common stock, shares issued		25,587,000
Common stock, shares outstanding (in shares)		25,587,000