COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Schedule of lease obligation, partially offset by subleases
At December 31, 2016, the Company was obligated under lease agreements for the rental of certain real estate and machinery and equipment used in its operations.  Future minimum rental obligations for non-cancellable lease payments total approximately $120.9 million at December 31, 2016.  The lease obligations, partially offset by sublease income, are payable as follows: 
 
 
Lease
 
Sublease
(Amounts in thousands)
 
Commitments
 
Income
2017
 
$
28,887

 
$
396

2018
 
22,314

 
404

2019
 
18,528

 
412

2020
 
14,310

 
420

2021
 
11,580

 
428

Thereafter
 
25,255

 
1,337

Components of the indemnification
In connection with the Ply Gem acquisition, in which Ply Gem Industries was acquired from Nortek in February 2004, Nortek has agreed to indemnify the Company for certain liabilities as set forth in the stock purchase agreement governing the Ply Gem acquisition.  In the event Nortek is unable to satisfy amounts due under these indemnifications, the Company would be liable.  The Company believes that Nortek has the financial capacity to honor its indemnification obligations and therefore does not anticipate incurring any losses related to liabilities indemnified by Nortek under the stock purchase agreement.  A receivable related to this indemnification has been recorded in other long-term assets in the approximate amount of $1.4 million and $1.8 million at December 31, 2016 and 2015, respectively.  As of December 31, 2016 and 2015, the Company has recorded liabilities related to these indemnifications of approximately $0.5 million and $0.5 million, respectively, in current liabilities and $0.9 million and $1.3 million, respectively, in long-term liabilities, consisting of the following:
(Amounts in thousands)
 
December 31, 2016
 
December 31, 2015
Product claim liabilities
 
$
138

 
$
138

Multiemployer pension plan withdrawal liability
 
808

 
960

Other
 
500

 
664

 
 
$
1,446

 
$
1,762

Changes in the Company's warranty liabilities
Changes in the Company’s short-term and long-term warranty liabilities are as follows:
 
 
For the year ended December 31,
(Amounts in thousands)
 
2016
 
2015
 
2014
Balance, beginning of period
 
$
76,562

 
$
84,423

 
$
42,466

Acquisitions-Canyon Stone (2015) and Simonton (2014)
 

 
100

 
48,235

Warranty expense during period
 
22,266

 
21,264

 
15,177

Adjustments
 

 
(7,761
)
 
(3,021
)
Settlements made during period
 
(21,549
)
 
(21,464
)
 
(18,434
)
Balance, end of period
 
$
77,279

 
$
76,562

 
$
84,423