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ACQUISITION OF DNP PHOTOMASK TECHNOLOGY TAIWAN CO., LTD. (Details) - USD ($) shares in Millions, $ in Millions |  | 7 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Apr. 04, 2014 | Nov. 02, 2014 | Nov. 02, 2014 | Oct. 30, 2016
Business Acquisition [Line Items] |  |  |  |
Date of acquisition | Apr. 04, 2014 |  |  |
Consideration transferred | $ 98.3 |  |  |
Ownership percentage in PDMC |  |  |  | 50.01%
Acquisition costs related to the merger included in selling, general and administrative expense |  |  | $ 2.5 |
Customer Relationships [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated amortization period |  | 12 years |  |
DNP [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership percentage of noncontrolling interests |  |  |  | 49.99%
PSMC [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of shares transferred to noncontrolling interests (in shares) | 112.9 |  |  |
DPTT [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pro forma adjustment for additional depreciation recorded on acquired long-lived assets |  |  | $ 6.6 |
PDMC [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Revenues |  | $ 101.8 |  |
Net income |  | $ 6.0 |  |

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