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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Cumulative Effect, Period of Adoption, Adjustment | Total Groupon, Inc. Stockholders' Equity | Total Groupon, Inc. Stockholders' Equity Cumulative Effect, Period of Adoption, Adjustment | Common Stock | Additional Paid-In Capital | Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment | Treasury Stock | Accumulated Deficit | Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment | Accumulated Other Comprehensive Income (Loss) | Non-controlling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2020 |  |  |  |  | 39,142,896 |  |  |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Beginning balance at Dec. 31, 2020 | $ 107,674 | $ (18,969) | $ 107,675 | $ (18,969) | $ 4 | $ 2,348,114 | $ (64,319) | $ (922,666) | $ (1,320,886) | $ 45,350 | $ 3,109 | $ (1)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | (3,116) |  | (3,006) |  |  |  |  |  | 14,558 |  | (17,564) | (110)
Vesting of restricted stock units and performance share units (in shares) |  |  |  |  | 308,954 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan (in shares) |  |  |  |  | 23,418 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan | 349 |  | 349 |  |  | 349 |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards (in shares) |  |  |  |  | (122,931) |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards | (4,901) |  | (4,901) |  |  | (4,901) |  |  |  |  |  |
Purchase of capped call transactions | (23,840) |  | (23,840) |  |  | (23,840) |  |  |  |  |  |
Stock-based compensation on equity-classified awards | 8,387 |  | 8,387 |  |  | 8,387 |  |  |  |  |  |
Receipts from noncontrolling interest holders | 36 |  |  |  |  |  |  |  |  |  |  | 36
Ending balance (in shares) at Mar. 31, 2021 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Mar. 31, 2021 |  |  |  |  | 39,352,337 |  |  |  |  |  |  |
Ending balance at Mar. 31, 2021 | 65,620 |  | 65,695 |  | $ 4 | 2,263,790 |  | $ (922,666) | (1,260,978) |  | (14,455) | (75)
Beginning balance (in shares) at Dec. 31, 2020 |  |  |  |  | 39,142,896 |  |  |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Beginning balance at Dec. 31, 2020 | 107,674 | $ (18,969) | 107,675 | $ (18,969) | $ 4 | 2,348,114 | $ (64,319) | $ (922,666) | (1,320,886) | $ 45,350 | 3,109 | (1)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | 75,935 |  |  |  |  |  |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2021 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Sep. 30, 2021 |  |  |  |  | 39,873,255 |  |  |  |  |  |  |
Ending balance at Sep. 30, 2021 | 149,497 |  | 149,293 |  | $ 4 | 2,269,184 |  | $ (922,666) | (1,186,253) |  | (10,976) | 204
Beginning balance (in shares) at Mar. 31, 2021 |  |  |  |  | 39,352,337 |  |  |  |  |  |  |
Beginning balance (in shares) at Mar. 31, 2021 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Beginning balance at Mar. 31, 2021 | 65,620 |  | 65,695 |  | $ 4 | 2,263,790 |  | $ (922,666) | (1,260,978) |  | (14,455) | (75)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | (6,404) |  | (6,657) |  |  |  |  |  | (3,382) |  | (3,275) | 253
Vesting of restricted stock units and performance share units (in shares) |  |  |  |  | 707,372 |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards (in shares) |  |  |  |  | (254,466) |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards | (11,716) |  | (11,716) |  |  | (11,716) |  |  |  |  |  |
Purchase of capped call transactions | (3,576) |  | (3,576) |  |  | (3,576) |  |  |  |  |  |
Settlement of convertible note hedges | 3,061 |  | 3,061 |  |  | 3,061 |  |  |  |  |  |
Settlement of warrants | (1,752) |  | (1,752) |  |  | (1,752) |  |  |  |  |  |
Stock-based compensation on equity-classified awards | 10,501 |  | 10,501 |  |  | 10,501 |  |  |  |  |  |
Receipts from noncontrolling interest holders | 102 |  |  |  |  |  |  |  |  |  |  | 102
Ending balance (in shares) at Jun. 30, 2021 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Jun. 30, 2021 |  |  |  |  | 39,805,243 |  |  |  |  |  |  |
Ending balance at Jun. 30, 2021 | 55,836 |  | 55,556 |  | $ 4 | 2,260,308 |  | $ (922,666) | (1,264,360) |  | (17,730) | 280
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | 85,455 |  | 84,861 |  |  |  |  |  | 78,107 |  | 6,754 | 594
Vesting of restricted stock units and performance share units (in shares) |  |  |  |  | 72,851 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan (in shares) |  |  |  |  | 25,981 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan | 779 |  | 779 |  |  | 779 |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards (in shares) |  |  |  |  | (30,820) |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards | (974) |  | (974) |  |  | (974) |  |  |  |  |  |
Stock-based compensation on equity-classified awards | 9,071 |  | 9,071 |  |  | 9,071 |  |  |  |  |  |
Distributions to noncontrolling interest holders | (670) |  |  |  |  |  |  |  |  |  |  | (670)
Ending balance (in shares) at Sep. 30, 2021 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Sep. 30, 2021 |  |  |  |  | 39,873,255 |  |  |  |  |  |  |
Ending balance at Sep. 30, 2021 | $ 149,497 |  | 149,293 |  | $ 4 | 2,269,184 |  | $ (922,666) | (1,186,253) |  | (10,976) | 204
Beginning balance (in shares) at Dec. 31, 2021 | 29,713,138 |  |  |  | 40,007,255 |  |  |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2021 | (10,294,117) |  |  |  |  |  |  | (10,294,117) |  |  |  |
Beginning balance at Dec. 31, 2021 | $ 210,296 |  | 209,872 |  | $ 4 | 2,294,215 |  | $ (922,666) | (1,156,868) |  | (4,813) | 424
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | (30,983) |  | (31,483) |  |  |  |  |  | (34,852) |  | 3,369 | 500
Vesting of restricted stock units and performance share units (in shares) |  |  |  |  | 308,152 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan (in shares) |  |  |  |  | 30,022 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan | 591 |  | 591 |  |  | 591 |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards (in shares) |  |  |  |  | (118,589) |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards | (2,597) |  | (2,597) |  |  | (2,597) |  |  |  |  |  |
Stock-based compensation on equity-classified awards | 8,349 |  | 8,349 |  |  | 8,349 |  |  |  |  |  |
Distributions to noncontrolling interest holders | (814) |  |  |  |  |  |  |  |  |  |  | (814)
Ending balance (in shares) at Mar. 31, 2022 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Mar. 31, 2022 |  |  |  |  | 40,226,840 |  |  |  |  |  |  |
Ending balance at Mar. 31, 2022 | $ 184,842 |  | 184,732 |  | $ 4 | 2,300,558 |  | $ (922,666) | (1,191,720) |  | (1,444) | 110
Beginning balance (in shares) at Dec. 31, 2021 | 29,713,138 |  |  |  | 40,007,255 |  |  |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2021 | (10,294,117) |  |  |  |  |  |  | (10,294,117) |  |  |  |
Beginning balance at Dec. 31, 2021 | $ 210,296 |  | 209,872 |  | $ 4 | 2,294,215 |  | $ (922,666) | (1,156,868) |  | (4,813) | 424
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | $ (133,675) |  |  |  |  |  |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2022 | (10,294,117) |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Sep. 30, 2022 | 30,399,483 |  |  |  | 40,693,600 |  |  |  |  |  |  |
Ending balance at Sep. 30, 2022 | $ 97,114 |  | 96,828 |  | $ 4 | 2,317,003 |  | $ (922,666) | (1,339,170) |  | 41,657 | 286
Beginning balance (in shares) at Mar. 31, 2022 |  |  |  |  | 40,226,840 |  |  |  |  |  |  |
Beginning balance (in shares) at Mar. 31, 2022 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Beginning balance at Mar. 31, 2022 | 184,842 |  | 184,732 |  | $ 4 | 2,300,558 |  | $ (922,666) | (1,191,720) |  | (1,444) | 110
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | (69,432) |  | (70,409) |  |  |  |  |  | (91,227) |  | 20,818 | 977
Vesting of restricted stock units and performance share units (in shares) |  |  |  |  | 407,426 |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards (in shares) |  |  |  |  | (151,368) |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards | (2,166) |  | (2,166) |  |  | (2,166) |  |  |  |  |  |
Stock-based compensation on equity-classified awards | 9,784 |  | 9,784 |  |  | 9,784 |  |  |  |  |  |
Distributions to noncontrolling interest holders | (943) |  |  |  |  |  |  |  |  |  |  | (943)
Ending balance (in shares) at Jun. 30, 2022 |  |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Jun. 30, 2022 |  |  |  |  | 40,482,898 |  |  |  |  |  |  |
Ending balance at Jun. 30, 2022 | 122,085 |  | 121,941 |  | $ 4 | 2,308,176 |  | $ (922,666) | (1,282,947) |  | 19,374 | 144
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss) | (33,260) |  | (33,940) |  |  |  |  |  | (56,223) |  | 22,283 | 680
Vesting of restricted stock units and performance share units (in shares) |  |  |  |  | 230,186 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan (in shares) |  |  |  |  | 53,529 |  |  |  |  |  |  |
Shares issued under employee stock purchase plan | 514 |  | 514 |  |  | 514 |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards (in shares) |  |  |  |  | (73,013) |  |  |  |  |  |  |
Tax withholdings related to net share settlements of stock-based compensation awards | (830) |  | (830) |  |  | (830) |  |  |  |  |  |
Stock-based compensation on equity-classified awards | 9,143 |  | 9,143 |  |  | 9,143 |  |  |  |  |  |
Distributions to noncontrolling interest holders | $ (538) |  |  |  |  |  |  |  |  |  |  | (538)
Ending balance (in shares) at Sep. 30, 2022 | (10,294,117) |  |  |  |  |  |  | (10,294,117) |  |  |  |
Ending balance (in shares) at Sep. 30, 2022 | 30,399,483 |  |  |  | 40,693,600 |  |  |  |  |  |  |
Ending balance at Sep. 30, 2022 | $ 97,114 |  | $ 96,828 |  | $ 4 | $ 2,317,003 |  | $ (922,666) | $ (1,339,170) |  | $ 41,657 | $ 286

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