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Stock-based Compensation - Schedule of Award Activity (Details) - $ / shares shares in Thousands		6 Months Ended
	May 18, 2018	Sep. 30, 2019
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2019 2020 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Shares
Granted	348
Weighted- average Fair Value on Grant Date
Granted		$ 18.15
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2016 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2018 2019 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2017 2018 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock Units (RSUs) [Member] \| May 18, 2020 \| Long Term Incentive Plan 2019 2020 [Member]
Shares
Granted	66
Restricted Stock Units (RSUs) [Member] \| May 18, 2021 \| Long Term Incentive Plan 2019 2020 [Member]
Shares
Granted	140
Restricted Stock Units (RSUs) [Member] \| May 18, 2022 \| Long Term Incentive Plan 2019 2020 [Member]
Shares
Granted	142
Restricted Stock Units, Performance-Based Award [Member] \| Long Term Incentive Plan 2018 2019 [Member]
Shares
Vested		0
Restricted Stock Units, Performance-Based Award [Member] \| Long Term Incentive Plan 2017 2018 [Member]
Shares
Vested		0
Restricted Stock Units, Time-Based Award [Member] \| Long Term Incentive Plan 2019 2020 [Member]
Shares
Vested		(53)
Restricted Stock Units, Time-Based Award [Member] \| Long Term Incentive Plan 2018 2019 [Member]
Shares
Vested		(58)
Restricted Stock Units, Time-Based Award [Member] \| Long Term Incentive Plan 2017 2018 [Member]
Shares
Vested		(156)
RSUs
Shares
Beginning balance		1,415
Granted		409
Vested		(365)
Forfeited		(10)
Ending balance		1,449
Weighted- average Fair Value on Grant Date
Beginning balance		$ 15.19
Granted		18.39
Vested		10.87
Forfeited		15.73
Ending balance		$ 17.18