Shared-Based Compensation - Summary of Number of Awards Granted and Grand Date Fair Value (Detail) shares in Thousands	6 Months Ended
	Jun. 30, 2020 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Date Fair Value (in dollars per share)	$ 9.44
TSR Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (in shares) | shares	139
Grant Date Fair Value (in dollars per share)	$ 10.88
ROIC Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (in shares) | shares	157
Grant Date Fair Value (in dollars per share)	$ 9.44