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Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Common shares [Member] | Additional Paid-in Capital [Member] | Accumulated deficit [Member] | Accumulated other comprehensive loss [Member] | Non-controlling interest [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2016 | $ 300,426 | $ 25,522 | $ 53,838 | $ (13,104) | $ 2,731 | $ 369,413
Balance (in shares) at Dec. 31, 2016 | 85,744 |  |  |  |  |
Employee stock purchase plan | $ 409 |  |  |  |  | 409
Employee stock purchase plan (in shares) | 61 |  |  |  |  |
Stock incentive plan | $ 8,064 | (3,439) |  |  |  | 4,625
Stock incentive plan (in shares) | 952 |  |  |  |  |
Stock-based compensation |  | 5,709 |  |  |  | 5,709
Dividends on Series A Preferred Stock |  |  | (6,800) |  |  | (6,800)
Accretion on Series A Preferred Stock |  |  | (1,009) |  |  | (1,009)
Net loss |  |  | (135,320) |  | 752 | (134,568)
Currency translation adjustment |  |  |  | 6,223 | (39) | 6,184
Cash flow hedges, net of income taxes of $130 |  |  |  | (305) |  | (305)
Acquisition of non-controlling interests |  | 214 |  | (82) | (1,869) | (1,737)
Balance at Dec. 30, 2017 | $ 308,899 | 28,006 | (89,291) | (7,268) | 1,575 | 241,921
Balance (in shares) at Dec. 30, 2017 | 86,757 |  |  |  |  |
Employee stock purchase plan | $ 630 |  |  |  |  | 630
Employee stock purchase plan (in shares) | 112 |  |  |  |  |
Stock incentive plan | $ 554 | (3,517) |  |  |  | 1,311
Stock incentive plan (in shares) | 4,828 |  |  |  |  |
Withholding taxes on stock-based awards |  | (632) |  |  |  | (632)
Stock-based compensation |  | 7,939 |  |  |  | 7,939
Dividends on Series A Preferred Stock |  |  | (6,800) |  |  | (6,800)
Accretion on Series A Preferred Stock |  |  | (1,109) |  |  | (1,109)
Net loss |  |  | (109,205) |  | 62 | (109,143)
Currency translation adjustment |  |  |  | (2,704) | 145 | (2,559)
Cash flow hedges, net of income taxes of $130 |  |  |  | 305 |  | 305
Dividend paid by subsidiary to non-controlling interest |  |  |  |  | (278) | (278)
Balance at Dec. 29, 2018 | $ 314,357 | 31,796 | (206,151) | (9,667) | 1,504 | 131,839
Balance (in shares) at Dec. 29, 2018 | 87,423 |  |  |  |  |
Cumulative effect of adoption of new revenue accounting standard |  |  | 254 |  |  | 254
Employee stock purchase plan | $ 475 |  |  |  |  | 475
Employee stock purchase plan (in shares) | 185 |  |  |  |  |
Stock incentive plan |  | (3,120) |  |  |  | 504
Stock incentive plan (in shares) | 482 |  |  |  |  |
Withholding taxes on stock-based awards | $ (3,624) | (394) |  |  |  | (394)
Stock-based compensation |  | 7,485 |  |  |  | 7,485
Dividends on Series A Preferred Stock |  |  | (6,800) |  |  | (6,800)
Accretion on Series A Preferred Stock |  |  | (1,222) |  |  | (1,222)
Net loss |  |  | (758) |  | (154) | (604)
Currency translation adjustment |  |  |  | (1,604) | (10) | (1,614)
Dividend paid by subsidiary to non-controlling interest |  |  |  |  | (31) | (31)
Capital contribution to majority-owned subsidiary |  |  |  |  | 271 | 271
Balance at Dec. 28, 2019 | $ 318,456 | $ 35,767 | $ (214,931) | $ (11,271) | $ 1,888 | $ 129,909
Balance (in shares) at Dec. 28, 2019 | 88,090 |  |  |  |  |

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