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Share-based Compensation - Stock Option Activity (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015 | Jun. 30, 2015 | Mar. 31, 2016 | Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Closing stock price (in dollars per share) |  |  |  |  |  | $ 27.87 | $ 23.50
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |  |  |  |  |
Proceeds from stock option exercises |  |  | $ 1,610,000 | $ 1,267,000 |  |  |
Non-qualified Stock Options with Time-based Vesting (NQO) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] |  |  |  |  |  |  |
Weighted average fair value of PNQs |  |  | $ 12.74 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |  |  |  |  |
Proceeds from stock option exercises |  |  | $ 1,300,000 | $ 1,300,000 |  |  |
Non-qualified Stock Options with Performance-based and Time-based Vesting (PNQ) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] |  |  |  |  |  |  |
Weighted average fair value of PNQs |  |  | $ 11.46 |  |  |  |
2007 Amended and Restated Long-term Incentive Plan [Member] | Non-qualified Stock Options with Time-based Vesting (NQO) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options |  |  |  |  |  | 228,623 | 329,300
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |  |  |  |  |
Options granted in period |  |  | 18,589 | 13,123 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  |  | (100,895) |  |  |  |
Number of Stock Options, Cancelled/Forfeited |  |  | (18,371) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |  |  |  |  |  |  |
Weighted Average Exercise Price, Beginning balance |  |  | $ 12.30 |  |  |  |
Weighted average exercise price of options granted (in dollars per share) |  |  | 29.17 | $ 23.44 |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price |  |  | 12.99 |  |  |  |
Weighted Average Exercise Price, Cancelled/Forfeited |  |  | 13.45 |  |  |  |
Weighted Average Exercise Price, Ending balance | $ 13.28 |  | 13.28 |  | $ 12.30 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] |  |  |  |  |  |  |
Weighted Average Grant Date Fair Value, Beginning balance |  |  | 5.54 |  |  |  |
Weighted average fair value of PNQs |  |  | 12.74 |  |  |  |
ShareBased Compensation Arrangement By ShareBased Payment Award,Options, Exercises In Period, Weighted Average Grant Date Fair Value |  |  | 5.59 |  |  |  |
Weighted Average Grant Date Fair Value, Cancelled/Forfeited |  |  | 6.17 |  |  |  |
Weighted Average Grant Date Fair Value, Ending balance | $ 6.05 |  | $ 6.05 |  | $ 5.54 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Remaining Contractual Term |  |  | 6 years 7 months 6 days |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value [Roll Forward] |  |  |  |  |  |  |
Aggregate Intrinsic Value, Beginning balance | $ 3,336,000 |  | $ 3,336,000 |  | $ 3,700,000 | $ 3,336,000 | $ 3,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value |  |  | 1,574,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Cancellations/Forfeitures in Period, Total Intrinsic Value |  |  | 0 |  |  |  |
Aggregate Intrinsic Value, Ending balance | $ 3,336,000 |  | $ 3,336,000 |  | $ 3,700,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |  |  |  |  |
Weighted Average Remaining Life, Beginning balance | 3 years 9 months 18 days |  |  |  | 3 years 10 months 24 days |  |
Weighted Average Remaining Life, Ending balance | 3 years 9 months 18 days |  |  |  | 3 years 10 months 24 days |  |
Options, Vested and exercisable, Outstanding |  |  |  |  |  | 188,705 |
Options, Vested and exercisable, Weighted Average Exercise Price |  |  |  |  |  | $ 10.50 |
Options, Vested and exercisable, Weighted Average Grant Date Fair Value | $ 4.90 |  |  |  |  |  |
Options, Vested and exercisable, Weighted Average Remaining Contractual Term | 3 years 3 months 18 days |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value |  |  |  |  |  | $ 3,278,000 |
Options, Vested and expected to vest, Outstanding |  |  |  |  |  | 225,974 |
Options, Vested and expected to vest, Weighted Average Exercise Price |  |  |  |  |  | $ 13.12 |
Options, Vested and expected to vest, Weighted Average Grant Date Fair Value | $ 5.99 |  |  |  |  |  |
Options, Vested and expected to vest, Exercisable, Weighted Average Remaining Life | 3 years 9 months 18 days |  |  |  |  |  |
Options, Vested and expected to vest, Aggregate Intrinsic Value |  |  |  |  |  | $ 3,333,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value |  |  | $ 0 |  |  |  |
Allocated share-based compensation expense | $ 0 | $ 100,000 | $ 200,000 | $ 300,000 |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options |  |  |  |  |  | 400,000 | 400,000
2007 Amended and Restated Long-term Incentive Plan [Member] | Non-qualified Stock Options with Performance-based and Time-based Vesting (PNQ) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |  |  |  |  |
Number of Stock Options, Beginning balance |  |  | 224,067 |  |  |  |
Options granted in period |  |  | 143,466 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  |  | (14,144) |  |  |  |
Number of Stock Options, Cancelled/Forfeited |  |  | (64,790) |  |  |  |
Number of Stock Options, Ending balance | 288,599 |  | 288,599 |  | 224,067 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |  |  |  |  |  |  |
Weighted Average Exercise Price, Beginning balance |  |  | $ 22.44 |  |  |  |
Weighted average exercise price of options granted (in dollars per share) |  |  | 29.48 |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price |  |  | 21.20 |  |  |  |
Weighted Average Exercise Price, Cancelled/Forfeited |  |  | 23.20 |  |  |  |
Weighted Average Exercise Price, Ending balance | $ 25.83 |  | 25.83 |  | $ 22.44 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] |  |  |  |  |  |  |
Weighted Average Grant Date Fair Value, Beginning balance |  |  | 10.31 |  |  |  |
Weighted average fair value of PNQs |  |  | 11.46 |  |  |  |
ShareBased Compensation Arrangement By ShareBased Payment Award,Options, Exercises In Period, Weighted Average Grant Date Fair Value |  |  | 10.45 |  |  |  |
Weighted Average Grant Date Fair Value, Cancelled/Forfeited |  |  | 10.37 |  |  |  |
Weighted Average Grant Date Fair Value, Ending balance | $ 10.86 |  | $ 10.86 |  | $ 10.31 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Remaining Contractual Term |  |  | 6 years 6 months |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value [Roll Forward] |  |  |  |  |  |  |
Aggregate Intrinsic Value, Beginning balance | $ 588,000 |  | $ 588,000 |  | $ 237,000 | $ 588,000 | 237,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value |  |  | 107,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Cancellations/Forfeitures in Period, Total Intrinsic Value |  |  | 0 |  |  |  |
Aggregate Intrinsic Value, Ending balance | 588,000 |  | $ 588,000 |  | $ 237,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |  |  |  |  |
Weighted Average Remaining Life, Beginning balance |  |  | 6 years |  |  |  |
Weighted Average Remaining Life, Ending balance |  |  | 6 years |  |  |  |
Options, Vested and exercisable, Outstanding |  |  |  |  |  | 48,132 |
Options, Vested and exercisable, Weighted Average Exercise Price |  |  |  |  |  | $ 22.52 |
Options, Vested and exercisable, Weighted Average Grant Date Fair Value |  |  | $ 10.31 |  |  |  |
Options, Vested and exercisable, Weighted Average Remaining Contractual Term |  |  | 5 years 4 months 24 days |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value |  |  |  |  |  | $ 257,000 |
Options, Vested and expected to vest, Outstanding |  |  |  |  |  | 272,503 |
Options, Vested and expected to vest, Weighted Average Exercise Price |  |  |  |  |  | $ 25.74 |
Options, Vested and expected to vest, Weighted Average Grant Date Fair Value |  |  | $ 10.85 |  |  |  |
Options, Vested and expected to vest, Exercisable, Weighted Average Remaining Life |  |  | 6 years |  | 6 years |  |
Options, Vested and expected to vest, Aggregate Intrinsic Value |  |  |  |  |  | $ 579,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value |  |  | $ 0 |  |  |  |
Allocated share-based compensation expense | $ 200,000 | $ 100,000 | $ 300,000 | 400,000 |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options |  |  |  |  |  | $ 2,100,000 | $ 1,500,000
Vested [Member] | Non-qualified Stock Options with Performance-based and Time-based Vesting (PNQ) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period |  |  | 27,317 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |  |  |  |  |  |
Proceeds from stock option exercises |  |  | $ 300,000 | $ 0 |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for fully vested and expected to vest options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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