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Valuation and Qualifying Accounts | 12 Months Ended
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Jun. 30, 2018
Valuation And Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | SCHEDULE II II-VI INCORPORATED AND SUBSIDIARIES VALUATION AND QUALIFYING ACCOUNTS YEARS ENDED JUNE 30, 2018, 2017, AND 2016 (IN THOUSANDS OF DOLLARS)
|  | Balance at |  |  | Charged |  |  | Charged |  |  | Deduction |  |  | Balance |
|  | Beginning |  |  | to |  |  | to Other |  |  | from |  |  | at End |
|  | of Year |  |  | Expense |  |  | Accounts |  |  | Reserves |  |  | of Year |
YEAR ENDED JUNE 30, 2018: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,314 |  |  | $ | (129 | ) |  | $ | - |  |  | $ | (348 | ) | (2) | $ | 837 |
Warranty reserves |  | $ | 4,546 |  |  | $ | 3,821 |  |  | $ | - |  |  | $ | (3,688 | ) |  | $ | 4,679 |
Deferred tax asset valuation allowance |  | $ | 42,562 |  |  | $ | (4,602 | ) |  | $ | (16,163 | ) | (5) | $ | - |  |  | $ | 21,797 |
YEAR ENDED JUNE 30, 2017: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 2,016 |  |  | $ | (134 | ) |  | $ | - |  |  | $ | (568 | ) | (2) | $ | 1,314 |
Warranty reserves |  | $ | 3,908 |  |  | $ | 4,850 |  |  | $ | - |  |  | $ | (4,212 | ) |  | $ | 4,546 |
Deferred tax asset valuation allowance |  | $ | 42,641 |  |  | $ | (79 | ) |  | $ | - |  |  | $ | - |  |  | $ | 42,562 |
YEAR ENDED JUNE 30, 2016: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,048 |  |  | $ | 1,123 |  |  | $ | - |  |  | $ | (155 | ) | (2) | $ | 2,016 |
Warranty reserves |  | $ | 3,251 |  |  | $ | 4,648 |  |  | $ | 82 |  | (1) | $ | (4,073 | ) |  | $ | 3,908 |
Deferred tax asset valuation allowance |  | $ | 2,713 |  |  | $ | 8,464 |  |  | $ | 36,240 |  | (3) | $ | (4,776 | ) | (4) | $ | 42,641 |
(1) | Relates to the warranty reserve acquired from acquisitions.
(2) | Primarily relates to write-offs of accounts receivable.
(3) | Valuation allowance recorded through goodwill.
(4) | Reduction in valuation allowance as a result of divesture of portion of business.
(5) | Primarily relates to the Company’s deferred taxes on the conversion feature of the convertible debt.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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