Completion of Initial Public Offering	12 Months Ended
Dec. 31, 2012
Completion of Initial Public Offering	2. Completion of Initial Public Offering Prior to the Company’s initial public offering (the “MagnaChip Corporation IPO”), the Company’s board of directors and the holders of a majority of its outstanding common units elected to convert the Company from a Delaware limited liability company to a Delaware corporation and to change the Company’s name from MagnaChip Semiconductor LLC to MagnaChip Semiconductor Corporation. The corporate conversion was completed on March 10, 2011. In connection with the corporate conversion, outstanding common units of MagnaChip Semiconductor LLC were automatically converted into shares of common stock of the Company, outstanding options to purchase common units of the Company were automatically converted into options to purchase shares of common stock of the Company and outstanding warrants to purchase common units of MagnaChip Semiconductor LLC were automatically converted into warrants to purchase shares of common stock of the Company, all at a ratio of one share of common stock for eight common units. On March 16, 2011, the Company also completed the MagnaChip Corporation IPO of 9,500,000 shares of common stock at an offering price of $14.00 per share and on March 11, 2011 listed on the NYSE. All shares were sold in the form of depositary shares and each depositary share represented an ownership interest in one share of common stock. Of the 9,500,000 shares, 950,000 shares were newly issued by the Company and 8,550,000 shares were sold by selling stockholders. The Company received $12,369 thousand of proceeds from the issuance of the new shares of common stock after deducting underwriters’ discounts and commissions, and the Company did not receive any proceeds from the sale of shares of common stock offered by the selling stockholders. The Company incurred $10,807 thousand of IPO expenses that were recorded as reduction of additional paid-in capital in the consolidated balance sheets.

2. Completion of Initial Public Offering

Prior to the Company’s initial public offering (the “MagnaChip Corporation IPO”), the Company’s board of directors and the holders of a majority of its outstanding common units elected to convert the Company from a Delaware limited liability company to a Delaware corporation and to change the Company’s name from MagnaChip Semiconductor LLC to MagnaChip Semiconductor Corporation. The corporate conversion was completed on March 10, 2011. In connection with the corporate conversion, outstanding common units of MagnaChip Semiconductor LLC were automatically converted into shares of common stock of the Company, outstanding options to purchase common units of the Company were automatically converted into options to purchase shares of common stock of the Company and outstanding warrants to purchase common units of MagnaChip Semiconductor LLC were automatically converted into warrants to purchase shares of common stock of the Company, all at a ratio of one share of common stock for eight common units.

On March 16, 2011, the Company also completed the MagnaChip Corporation IPO of 9,500,000 shares of common stock at an offering price of $14.00 per share and on March 11, 2011 listed on the NYSE. All shares were sold in the form of depositary shares and each depositary share represented an ownership interest in one share of common stock. Of the 9,500,000 shares, 950,000 shares were newly issued by the Company and 8,550,000 shares were sold by selling stockholders. The Company received $12,369 thousand of proceeds from the issuance of the new shares of common stock after deducting underwriters’ discounts and commissions, and the Company did not receive any proceeds from the sale of shares of common stock offered by the selling stockholders. The Company incurred $10,807 thousand of IPO expenses that were recorded as reduction of additional paid-in capital in the consolidated balance sheets.