Noncontrolling interest	6 Months Ended
Jun. 28, 2019
Noncontrolling Interest [Abstract]
Noncontrolling interest	6. Noncontrolling interest QGT owns 51.0% of the outstanding shares of Cinos Co., Ltd., a South Korean company that provides outsourced cleaning and recycling of precision parts for the semiconductor industry through its operating facilities in South Korea and, through a 60.0% interest in a company (Cinos Xian Clean Technology, Ltd.), in China. QGT is obligated to purchase shares held by two other shareholders of Cinos Co., Ltd. representing a combined 35.0% interest. QGT accounted for this unconditional obligation as an assumed liability and derecognized any noncontrolling interest related to the 35%, which brings its controlling interest up to 86%. The carrying value of the remaining 14.0% interest held by others in Cinos Co., Ltd. and the 40.0% interest in the China company are presented as noncontrolling interests in the accompanying consolidated financial statements. The fair values of the noncontrolling interests were estimated based on the values of Cinos Co., Ltd. and Cinos Xian Clean Technology, Ltd. on a 100.0% basis. The values were calculated based on the pro-rata portion of total forecasted QGT earnings before interest expense, taxes, depreciation and amortization ("EBITDA") contributed by each entity. Management indicated that each entity's pro-rata portion of EBITDA was reasonably reflective of each entity's invested capital value at the acquisition date. The Company is obligated to purchase stock owned by a Cinos Co., Ltd. shareholder at a fixed price per share, while the purchase price per share for the other shareholder is the greater of the then fair value of the stock and the fixed price per share (floor). The Company has a firm obligation to purchase the shares and a call option, while the two shareholders have a put option. Accordingly, the fair value of the obligation of $8.5 million has been recorded as a non-current liability in the accompanying consolidated balance sheets and represents a Level 3 measurement as discussed in Note 1 of the Company’s Condensed Consolidated Financial Statements. The agreement with Cinos Co., Ltd. allows for the purchase obligation to become due at various times through December 2022.

Noncontrolling interest

6 Months Ended

Jun. 28, 2019

6. Noncontrolling interest

QGT owns 51.0% of the outstanding shares of Cinos Co., Ltd., a South Korean company that provides outsourced cleaning and recycling of precision parts for the semiconductor industry through its operating facilities in South Korea and, through a 60.0% interest in a company (Cinos Xian Clean Technology, Ltd.), in China. QGT is obligated to purchase shares held by two other shareholders of Cinos Co., Ltd. representing a combined 35.0% interest. QGT accounted for this unconditional obligation as an assumed liability and derecognized any noncontrolling interest related to the 35%, which brings its controlling interest up to 86%.

The carrying value of the remaining 14.0% interest held by others in Cinos Co., Ltd. and the 40.0% interest in the China company are presented as noncontrolling interests in the accompanying consolidated financial statements. The fair values of the noncontrolling interests were estimated based on the values of Cinos Co., Ltd. and Cinos Xian Clean Technology, Ltd. on a 100.0% basis. The values were calculated based on the pro-rata portion of total forecasted QGT earnings before interest expense, taxes, depreciation and amortization ("EBITDA") contributed by each entity. Management indicated that each entity's pro-rata portion of EBITDA was reasonably reflective of each entity's invested capital value at the acquisition date.

The Company is obligated to purchase stock owned by a Cinos Co., Ltd. shareholder at a fixed price per share, while the purchase price per share for the other shareholder is the greater of the then fair value of the stock and the fixed price per share (floor). The Company has a firm obligation to purchase the shares and a call option, while the two shareholders have a put option. Accordingly, the fair value of the obligation of $8.5 million has been recorded as a non-current liability in the accompanying consolidated balance sheets and represents a Level 3 measurement as discussed in Note 1 of the Company’s Condensed Consolidated Financial Statements. The agreement with Cinos Co., Ltd. allows for the purchase obligation to become due at various times through December 2022.