Consolidated Balance Sheets - USD ($) $ in Thousands |
Jun. 30, 2017 |
Dec. 31, 2016 |
| Current assets |
|
|
| Cash and cash equivalents |
$ 131,523
|
$ 83,355
|
| Restricted cash (Note 12) |
|
18,251
|
| Accounts receivable, net |
76,007
|
61,775
|
| Inventories, net |
58,143
|
57,048
|
| Other receivables |
3,821
|
5,864
|
| Prepaid expenses |
11,680
|
8,137
|
| Hedge collateral |
6,590
|
3,150
|
| Other current assets |
5,063
|
5,113
|
| Total current assets |
292,827
|
242,693
|
| Property, plant and equipment, net |
186,078
|
179,793
|
| Intangible assets, net |
3,530
|
3,085
|
| Long-term prepaid expenses |
14,853
|
9,556
|
| Deferred income tax assets |
253
|
193
|
| Other non-current assets |
4,486
|
6,632
|
| Total assets |
502,027
|
441,952
|
| Current liabilities |
|
|
| Accounts payable |
52,202
|
51,509
|
| Other accounts payable |
12,702
|
12,272
|
| Accrued expenses |
51,227
|
60,365
|
| Deferred revenue |
11,487
|
11,092
|
| Deposits received (Note 12) |
266
|
16,549
|
| Other current liabilities |
2,148
|
1,654
|
| Total current liabilities |
130,032
|
153,441
|
| Long-term borrowings, net |
302,380
|
221,082
|
| Accrued severance benefits, net |
130,050
|
129,225
|
| Other non-current liabilities |
10,055
|
10,318
|
| Total liabilities |
572,517
|
514,066
|
| Commitments and Contingencies (Note 18) |
|
|
| Stockholders' equity |
|
|
| Common stock, $0.01 par value, 150,000,000 shares authorized, 42,384,836 shares issued and 34,010,627 outstanding at June 30, 2017 and 41,627,103 shares issued and 35,048,338 outstanding at December 31, 2016 |
424
|
416
|
| Additional paid-in capital |
133,885
|
130,189
|
| Accumulated deficit |
(90,146)
|
(125,825)
|
| Treasury stock, 8,374,209 shares at June 30, 2017 and 6,578,765 shares at December 31, 2016 |
(102,319)
|
(90,918)
|
| Accumulated other comprehensive income (loss) |
(12,334)
|
14,024
|
| Total stockholders' deficit |
(70,490)
|
(72,114)
|
| Total liabilities and stockholders' equity |
$ 502,027
|
$ 441,952
|