Stockholders' Equity - Capital Stock Activity (Details) - shares		12 Months Ended
	May 09, 2018	Dec. 31, 2019	Dec. 31, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		77,400,000
Issuance of common stock at the Separation (in shares)	77,339,828
Ending balance (in shares)		77,500,000	77,400,000
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		77,353,000	0
Issuance of common stock at the Separation (in shares)			77,340,000
Shares issued—share-based compensation (in shares)		107,000	13,000
Ending balance (in shares)		77,460,000	77,353,000