GUARANTOR/NON-GUARANTOR FINANCIAL INFORMATION, Condensed Consolidating Statement of Cash Flows (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Oct. 01, 2016
Jul. 02, 2016
Apr. 02, 2016
Dec. 31, 2015
Oct. 03, 2015
Jul. 04, 2015
Apr. 04, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Cash flows from operating activities:                      
Net income (loss) $ 6,663 $ 54,755 $ 41,646 $ (27,577) $ 9,064 $ 41,711 $ 30,372 $ (48,859) $ 75,487 $ 32,288 $ (31,269)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:                      
Depreciation and amortization expense                 56,403 58,400 48,463
Fair-value premium on purchased inventory                 0 54 38
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability                 0 0 (264)
Restructuring Costs                 427 704 3,275
Non-cash interest expense, net                 13,710 13,380 14,948
(Gain) loss on foreign currency transactions                 (299) 3,166 992
Litigation Settlement, Amount                 (1,875)    
Loss Contingency, Loss in Period                 1,875 0 4,573
Loss on modification or extinguishment of debt 7,100 $ 2,300   2,400         11,747 0 21,364
Stock based compensation                 1,067 1,960 2,246
Deferred income taxes                 (57,989) (4,901) (2,373)
tax receivable agreement adjustment                 60,874 12,947 (670)
Increase (reduction) in tax uncertainty, net of valuation allowance                 1,059 (199) 131
Equity Income In Consolidated Subsidiaries                 0 0 0
Other                 (190) (28) (295)
Changes in operating assets and liabilities:                      
Accounts receivable, net                 (14,709) (4,562) (12,112)
Inventories                 (11,542) 29,921 (26,745)
Prepaid expenses and other current assets                 (2,967) 6,729 (4,960)
Accounts payable                 945 (10,563) (17,404)
Accrued expenses                 9,037 3,336 (9,752)
payments on tax receivable agreement                 (4,971) (48) 0
Cash payments on restructuring and integration liabilities                 (540) (1,645) (4,969)
Other                 647 (1,624) (449)
Net cash provided by (used in) operating activities                 145,042 139,363 (15,232)
Cash flows from investing activities:                      
Capital expenditures                 (36,001) (33,860) (23,661)
Proceeds from sale of assets                 183 122 823
Acquisitions, net of cash acquired                 0 (21,000) (130,856)
Net cash used in investing activities                 (35,818) (54,738) (153,694)
Proceeds from long-term debt                 0 0 1,067,725
Cash flows from financing activities:                      
Payments on long-term debt                 (164,300) (4,300) (855,225)
Proceeds from intercompany investment                 0 0 0
Payment of early tender and call premiums                 0 0 (61,142)
Proceeds from Stock Options Exercised                 1,091 2,198 1,112
Payments of Debt Issuance Costs                 0 (1,412) (16,947)
Net cash provided by (used in) financing activities                 (168,180) (3,562) 135,523
Impact of exchange rate movements on cash                 1,128 (4,800) (3,236)
Net increase (decrease) in cash and cash equivalents                 (57,828) 76,263 (36,639)
Cash and cash equivalents at the beginning of the period       109,425       33,162 109,425 33,162 69,801
Cash and cash equivalents at the end of the period 51,597       109,425       51,597 109,425 33,162
Guarantor Ply Gem Holdings, Inc. [Member]                      
Cash flows from operating activities:                      
Net income (loss)                 75,487 32,288 (31,269)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:                      
Depreciation and amortization expense                 0 0 0
Fair-value premium on purchased inventory                   0 0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability                     0
Restructuring Costs                 0 0 0
Non-cash interest expense, net                 0 0 0
(Gain) loss on foreign currency transactions                 0 0 0
Litigation Settlement, Amount                 0    
Loss Contingency, Loss in Period                     0
Loss on modification or extinguishment of debt                 0   0
Stock based compensation                 0 0 0
Deferred income taxes                 0 0 0
tax receivable agreement adjustment                 0 0 0
Increase (reduction) in tax uncertainty, net of valuation allowance                 0 0 0
Equity Income In Consolidated Subsidiaries                 (75,487) (32,288) 31,269
Other                 0 0 0
Changes in operating assets and liabilities:                      
Accounts receivable, net                 0 0 0
Inventories                 0 0 0
Prepaid expenses and other current assets                 0 0 0
Accounts payable                 0 0 0
Accrued expenses                 0 0 0
payments on tax receivable agreement                 0 0  
Cash payments on restructuring and integration liabilities                 0 0 0
Other                 0 0 0
Net cash provided by (used in) operating activities                 0 0 0
Cash flows from investing activities:                      
Capital expenditures                 0 0 0
Proceeds from sale of assets                 0 0 0
Acquisitions, net of cash acquired                   0 0
Net cash used in investing activities                 0 0 0
Proceeds from long-term debt                     0
Cash flows from financing activities:                      
Payments on long-term debt                 0 0 0
Proceeds from intercompany investment                 0 0 0
Payment of early tender and call premiums                     0
Proceeds from Stock Options Exercised                 0 0 0
Payments of Debt Issuance Costs                   0 0
Net cash provided by (used in) financing activities                 0 0 0
Impact of exchange rate movements on cash                 0 0 0
Net increase (decrease) in cash and cash equivalents                 0 0 0
Cash and cash equivalents at the beginning of the period       0       0 0 0 0
Cash and cash equivalents at the end of the period 0       0       0 0 0
Issuer Ply Gem Industries, Inc. [Member]                      
Cash flows from operating activities:                      
Net income (loss)                 75,487 32,288 (31,269)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:                      
Depreciation and amortization expense                 164 312 698
Fair-value premium on purchased inventory                   0 0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability                     0
Restructuring Costs                 0 0 0
Non-cash interest expense, net                 13,710 13,380 14,948
(Gain) loss on foreign currency transactions                 0 0 0
Litigation Settlement, Amount                 0    
Loss Contingency, Loss in Period                     0
Loss on modification or extinguishment of debt                 11,747   21,364
Stock based compensation                 1,067 1,960 2,246
Deferred income taxes                 0 0 0
tax receivable agreement adjustment                 60,874 12,947 (670)
Increase (reduction) in tax uncertainty, net of valuation allowance                 0 0 0
Equity Income In Consolidated Subsidiaries                 (151,576) (52,372) (160)
Other                 0 0 0
Changes in operating assets and liabilities:                      
Accounts receivable, net                 0 0 0
Inventories                 0 0 0
Prepaid expenses and other current assets                 (28) 1,165 (229)
Accounts payable                 142 (4) (362)
Accrued expenses                 201 1,682 (4,285)
payments on tax receivable agreement                 (4,971) (48)  
Cash payments on restructuring and integration liabilities                 0 0 0
Other                 0 0 0
Net cash provided by (used in) operating activities                 11,788 11,358 2,281
Cash flows from investing activities:                      
Capital expenditures                 (1,749) (2,848) (160)
Proceeds from sale of assets                 0 0 0
Acquisitions, net of cash acquired                   0 (130,856)
Net cash used in investing activities                 (1,749) (2,848) (131,016)
Proceeds from long-term debt                     1,067,725
Cash flows from financing activities:                      
Payments on long-term debt                 (164,300) (4,300) (855,225)
Proceeds from intercompany investment                 (113,484) (66,189) (41,033)
Payment of early tender and call premiums                     (61,142)
Proceeds from Stock Options Exercised                 1,091 2,198 1,112
Payments of Debt Issuance Costs                   (1,412) (16,947)
Net cash provided by (used in) financing activities                 (54,696) 62,627 94,490
Impact of exchange rate movements on cash                 0 0 0
Net increase (decrease) in cash and cash equivalents                 (44,657) 71,137 (34,245)
Cash and cash equivalents at the beginning of the period       94,692       23,555 94,692 23,555 57,800
Cash and cash equivalents at the end of the period 50,035       94,692       50,035 94,692 23,555
Guarantor Subsidiaries [Member]                      
Cash flows from operating activities:                      
Net income (loss)                 162,342 68,217 26,028
Adjustments to reconcile net loss to cash provided by (used in) operating activities:                      
Depreciation and amortization expense                 49,484 51,079 39,399
Fair-value premium on purchased inventory                   54 38
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability                     (264)
Restructuring Costs                 0 0 0
Non-cash interest expense, net                 0 0 0
(Gain) loss on foreign currency transactions                 0 0 0
Litigation Settlement, Amount                 (1,875)    
Loss Contingency, Loss in Period                     4,573
Loss on modification or extinguishment of debt                 0   0
Stock based compensation                 0 0 0
Deferred income taxes                 (56,712) (3,612) (6,638)
tax receivable agreement adjustment                 0 0 0
Increase (reduction) in tax uncertainty, net of valuation allowance                 1,059 (199) 131
Equity Income In Consolidated Subsidiaries                 0 0 0
Other                 (190) (28) (295)
Changes in operating assets and liabilities:                      
Accounts receivable, net                 (18,122) (10,949) (5,087)
Inventories                 (12,355) 27,963 (25,603)
Prepaid expenses and other current assets                 (3,166) 5,348 (4,501)
Accounts payable                 (2,449) (11,712) (13,648)
Accrued expenses                 8,253 2,452 (4,454)
payments on tax receivable agreement                 0 0  
Cash payments on restructuring and integration liabilities                 (112) (201) (1,416)
Other                 0 (1,624) (449)
Net cash provided by (used in) operating activities                 129,907 126,788 7,814
Cash flows from investing activities:                      
Capital expenditures                 (31,070) (28,181) (20,918)
Proceeds from sale of assets                 55 85 167
Acquisitions, net of cash acquired                   (21,000) 0
Net cash used in investing activities                 (31,015) (49,096) (20,751)
Proceeds from long-term debt                     0
Cash flows from financing activities:                      
Payments on long-term debt                 0 0 0
Proceeds from intercompany investment                 104,866 76,791 (12,062)
Payment of early tender and call premiums                     0
Proceeds from Stock Options Exercised                 0 0 0
Payments of Debt Issuance Costs                   0 0
Net cash provided by (used in) financing activities                 (104,866) (76,791) 12,062
Impact of exchange rate movements on cash                 0 0 0
Net increase (decrease) in cash and cash equivalents                 (5,974) 901 (875)
Cash and cash equivalents at the beginning of the period       (4,944)       (5,845) (4,944) (5,845) (4,970)
Cash and cash equivalents at the end of the period (10,918)       (4,944)       (10,918) (4,944) (5,845)
Non-Guarantor Subsidiary [Member]                      
Cash flows from operating activities:                      
Net income (loss)                 (10,766) (15,845) (25,868)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:                      
Depreciation and amortization expense                 6,755 7,009 8,366
Fair-value premium on purchased inventory                   0 0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability                     0
Restructuring Costs                 427 704 3,275
Non-cash interest expense, net                 0 0 0
(Gain) loss on foreign currency transactions                 (299) 3,166 992
Litigation Settlement, Amount                 0    
Loss Contingency, Loss in Period                     0
Loss on modification or extinguishment of debt                 0   0
Stock based compensation                 0 0 0
Deferred income taxes                 (1,277) (1,289) 4,265
tax receivable agreement adjustment                 0 0 0
Increase (reduction) in tax uncertainty, net of valuation allowance                 0 0 0
Equity Income In Consolidated Subsidiaries                 0 0 0
Other                 0 0 0
Changes in operating assets and liabilities:                      
Accounts receivable, net                 3,413 6,387 (7,025)
Inventories                 813 1,958 (1,142)
Prepaid expenses and other current assets                 227 216 (230)
Accounts payable                 3,252 1,153 (3,394)
Accrued expenses                 583 (798) (1,013)
payments on tax receivable agreement                 0 0  
Cash payments on restructuring and integration liabilities                 (428) (1,444) (3,553)
Other                 647 0 0
Net cash provided by (used in) operating activities                 3,347 1,217 (25,327)
Cash flows from investing activities:                      
Capital expenditures                 (3,182) (2,831) (2,583)
Proceeds from sale of assets                 128 37 656
Acquisitions, net of cash acquired                   0 0
Net cash used in investing activities                 (3,054) (2,794) (1,927)
Proceeds from long-term debt                     0
Cash flows from financing activities:                      
Payments on long-term debt                 0 0 0
Proceeds from intercompany investment                 8,618 (10,602) (28,971)
Payment of early tender and call premiums                     0
Proceeds from Stock Options Exercised                 0 0 0
Payments of Debt Issuance Costs                   0 0
Net cash provided by (used in) financing activities                 (8,618) 10,602 28,971
Impact of exchange rate movements on cash                 1,128 (4,800) (3,236)
Net increase (decrease) in cash and cash equivalents                 (7,197) 4,225 (1,519)
Cash and cash equivalents at the beginning of the period       19,677       15,452 19,677 15,452 16,971
Cash and cash equivalents at the end of the period 12,480       19,677       12,480 19,677 15,452
Consolidation, Eliminations [Member]                      
Cash flows from operating activities:                      
Net income (loss)                 (227,063) (84,660) 31,109
Adjustments to reconcile net loss to cash provided by (used in) operating activities:                      
Depreciation and amortization expense                 0 0 0
Fair-value premium on purchased inventory                   0 0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability                     0
Restructuring Costs                 0 0 0
Non-cash interest expense, net                 0 0 0
(Gain) loss on foreign currency transactions                 0 0 0
Litigation Settlement, Amount                 0    
Loss Contingency, Loss in Period                     0
Loss on modification or extinguishment of debt                 0   0
Stock based compensation                 0 0 0
Deferred income taxes                 0 0 0
tax receivable agreement adjustment                 0 0 0
Increase (reduction) in tax uncertainty, net of valuation allowance                 0 0 0
Equity Income In Consolidated Subsidiaries                 227,063 84,660 (31,109)
Other                 0 0 0
Changes in operating assets and liabilities:                      
Accounts receivable, net                 0 0 0
Inventories                 0 0 0
Prepaid expenses and other current assets                 0 0 0
Accounts payable                 0 0 0
Accrued expenses                 0 0 0
payments on tax receivable agreement                 0 0  
Cash payments on restructuring and integration liabilities                 0 0 0
Other                 0 0 0
Net cash provided by (used in) operating activities                 0 0 0
Cash flows from investing activities:                      
Capital expenditures                 0 0 0
Proceeds from sale of assets                 0 0 0
Acquisitions, net of cash acquired                   0 0
Net cash used in investing activities                 0 0 0
Proceeds from long-term debt                     0
Cash flows from financing activities:                      
Payments on long-term debt                 0 0 0
Proceeds from intercompany investment                 0 0 0
Payment of early tender and call premiums                     0
Proceeds from Stock Options Exercised                 0 0 0
Payments of Debt Issuance Costs                   0 0
Net cash provided by (used in) financing activities                 0 0 0
Impact of exchange rate movements on cash                 0 0 0
Net increase (decrease) in cash and cash equivalents                 0 0 0
Cash and cash equivalents at the beginning of the period       $ 0       $ 0 0 0 0
Cash and cash equivalents at the end of the period $ 0       $ 0       $ 0 $ 0 $ 0