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Employee Benefit Plans (Narratives) (Details) | 3 Months Ended | 6 Months Ended | 9 Months Ended
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Mar. 31, 2019 Quarter $ / shares shares | Dec. 31, 2018 Quarter $ / shares | Sep. 30, 2018 $ / shares shares | Mar. 31, 2018 $ / shares shares | Dec. 31, 2018 | Mar. 31, 2019 $ / shares shares | Mar. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 4,516,000 |
Stock options/units granted, grant date fair value | $ / shares |  |  |  |  |  | $ 6.44 |
Stock options granted |  |  |  |  |  | 852,000 |
2014 Employee Stock Purchase Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares issued under stock purchase plan | 1,499,042 |  |  | 1,151,759 |  | 2,779,750 | 2,419,689
Weighted-average grant-date fair value of options granted (in dollars per share) | $ / shares | $ 2.69 |  |  | $ 4.00 |  | $ 2.71 | $ 3.26
Restricted Stock Units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting percentage |  |  |  |  | The RSUs vest from the original grant date as to one-third (1/3) on the one-year anniversary and one-twelfth (1/12) each quarter thereafter, subject to continued service to the Company. |  |
Performance Shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Performance stock unit vesting, consecutive quarters | Quarter | 2 |  |  |  |  |  |
Performance stock unit vesting, earnings per share threshold one | $ / shares | $ 0.32 |  |  |  |  |  |
Performance stock unit vesting, earnings per share threshold two | $ / shares | $ 0.20 |  |  |  |  |  |
Performance Stock Options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted | 0 |  |  |  |  |  |
Employees | Restricted Stock Units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted | 474,016 |  |  |  |  |  |
Employees | Performance Shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Performance stock unit vesting, earnings per share | $ / shares | $ 0.20 | $ 0.20 |  |  |  |  |
Performance stock unit vesting, consecutive quarters | Quarter | 2 | 2 |  |  |  |  |
Stock options/units vesting, stock trigger price | $ / shares | $ 10.00 | $ 10.00 |  |  |  |  |
Employees and Directors |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 4,515,899 |
Employees and Directors | Restricted Stock Units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 3,880,999 |
Employees and Directors | Performance Shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 634,900 |
Stock options/units granted, grant date fair value | $ / shares |  |  |  |  |  | $ 6.40 |
Executive officers and or directors |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 921,434 |
Executive officers and or directors | Restricted Stock Units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 711,934 |
Executive officers and or directors | Performance Shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards granted |  |  |  |  |  | 209,500 |
Certain Officers and Executive Vice Presidents | Performance Stock Options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock options/units granted, grant date fair value | $ / shares |  |  |  |  |  | $ 2.62 |
Stock options/units vesting, stock trigger price | $ / shares |  |  | $ 10.00 |  |  |  |
Stock options granted |  |  | 851,700 |  |  |  |
Stock options vesting performance period |  |  | 3 years |  |  |  |
Stock options vesting, Threshold consecutive trading days from August 29, 2018 through August 31, 2021 |  |  | 30 days |  |  |  |
Certain Officers and Executive Vice Presidents | Performance Stock Options | Price Hurdle Met Before or on August 31, 2019 |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting percentage |  |  |  |  |  | one-third of the PSOs will vest on August 31, 2019 and the remainder will vest quarterly over two years. |
Award vesting percentage |  |  |  |  |  | 33.33% |
Certain Officers and Executive Vice Presidents | Performance Stock Options | Price Hurdle Met After August 31, 2019 |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting percentage |  |  |  |  |  | a number of the PSOs will vest (ratably calculated based upon the time elapsed between August 31, 2018 and the date the hurdle is met) and the remainder will vest quarterly through August 31, 2021. |

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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