Stock-Based Compensation Expense (Schedule of Grants Awarded) (Details) - USD ($) $ in Thousands				1 Months Ended	2 Months Ended	3 Months Ended	5 Months Ended	6 Months Ended
	Apr. 30, 2019	Feb. 01, 2019	Jun. 04, 2018	Jun. 30, 2018	Jun. 03, 2018	Jun. 30, 2019	Jun. 03, 2018	Jun. 30, 2019
Restricted stock unit grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)	37,555	144,000	562,217
Successor Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)				1,181,155,000		37,555,000		181,555,000
Total expense				$ 652		$ 1,106
Successor Company | Stock option grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)				581,124,000		0		0
Successor Company | Restricted stock unit grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)				600,031,000		37,555,000		181,555,000
Predecessor Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)							0
Total expense					$ 65		$ 231	$ 2,314
Predecessor Company | Stock option grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)							0
Predecessor Company | Restricted stock unit grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants (shares)							0
Corporate Expenses | Successor Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expense				$ 652		$ 1,106		2,314
Corporate Expenses | Successor Company | Stock option grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expense				315		846		1,699
Corporate Expenses | Successor Company | Restricted stock unit grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expense				$ 337		$ 260		$ 615
Corporate Expenses | Predecessor Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expense					65		$ 231
Corporate Expenses | Predecessor Company | Stock option grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expense					65		231
Corporate Expenses | Predecessor Company | Restricted stock unit grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expense					$ 0		$ 0