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NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) $ / shares in Units, € in Thousands, BRL in Thousands |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 14, 2016 $ / shares | Oct. 01, 2016 USD ($) | Jul. 31, 2016 AUD loan | Jul. 14, 2016 USD ($) | Mar. 13, 2015 USD ($) | Feb. 27, 2014 USD ($) | Dec. 21, 2009 USD ($) | Nov. 11, 2016 USD ($) $ / shares shares | Sep. 30, 2015 EUR (€) | Dec. 31, 2013 USD ($) | Nov. 30, 2012 CAD | Oct. 31, 2006 USD ($) | Jun. 30, 2016 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) $ / shares shares | Nov. 16, 2016 USD ($) | Sep. 30, 2016 AUD property | Sep. 30, 2016 USD ($) property $ / shares | Sep. 30, 2016 CAD property | Sep. 30, 2016 EUR (€) property | Sep. 30, 2016 BRL property | May 18, 2016 USD ($) | Mar. 31, 2016 USD ($) | Mar. 12, 2015 USD ($)
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument exercised period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum payments under capital leases for 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,154,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under capital leases for 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,963,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under capital leases for 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,624,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under capital leases for 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,604,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under capital leases for 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,623,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under capital leases thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 282,000 |  |  |  |  |  |  |  |  |  |
Capital leased assets, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,314,000 |  |  |  |  |  | 18,039,000 |  |  |  |  |  |  |  |  |  |
Capital leases, lessee balance sheet, assets by major class, accumulated depreciation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,520,000 |  |  |  |  |  | 10,148,000 |  |  |  |  |  |  |  |  |  |
Deferred interest charges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 156,000 |  |  |  |  |  | 131,000 |  |  |  |  |  |  |  |  |  |
Amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,628,000 | 1,765,000 |  | $ 1,296,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 302,362,000 | 233,491,000 |  | 691,943,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire buildings |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital lease maturity year |  |  |  |  |  |  |  |  |  |  |  |  | 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, percentage bearing fixed interest, percentage rate |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum payments under debt agreements for 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,644,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under debt agreements for 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,378,000 |  |  |  |  |  |  |  |  |  |
Debt Agreements Future Minimum Payments Due In Three Years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23,934,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under debt agreements for 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 34,957,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under debt agreements for 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,895,000 |  |  |  |  |  |  |  |  |  |
Minimum payments under debt agreements thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 746,048,000 |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  | $ 35,092,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  | 4.00% |  | 4.00% |  | 4.00% |  | 4.00% |  |  |  |
Payment of tender offer premium |  |  |  |  |  |  | $ 31,530,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Underwriting fees and other expense capitalized |  |  |  |  |  |  | 10,313,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from debt extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | 0 |  | $ 38,890,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Write off of deferred debt issuance cost |  |  |  |  |  |  | 6,574,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepaid interest on defeased note on extinguishment of debt |  |  |  |  |  |  | 786,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage of equity interest of subsidiaries borrowings guaranteed |  |  |  |  |  | 65.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,888 |  | CAD 5,090 |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  |  |  |  |  |  |  |  |  | 1.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 843,569,000 |  |  |  |  |  | 936,558,000 |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 861,199,000 |  |  |  |  |  | 952,856,000 |  |  |  |  |  |  |  |  |  |
Amount of line note available to purchase common stock in open market |  |  |  |  |  |  |  |  |  |  | $ 10,908,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, ESOP | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,591,117 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, value, ESOP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
ESOP, weighted average purchase price of shares purchased (in Dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12.57 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate during period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% | 5.46% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |
Line of credit facility, remaining borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 333,725,000 |  |  |  |  |  |  |  |  |  |
Letter Of Credit Subfacility [Member] | Revolver due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  |  |  |  | $ 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 16,275,000 |  |  |  |  |  |  |  |  |  |
Multicurrency Subfacility [Member] | Revolver due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  |  |  |  | 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin Rate [Member] | Revolver due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate during period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate during period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convert. debt due 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, conversion ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 70.1632 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt conversion, converted instrument, amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, conversion price (in Dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14.25 |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, threshold percentage of stock price trigger |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, if-converted value in excess of principal |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,720,000 | $ 15,720,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convert. debt due 2017 [Member] | Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes payable, fair value disclosure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 121,563,000 |  |  |  |  |  |  |  |  |  |
Revolving Facility, June 2017 [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | AUD 7,000,000 |  | 5,372,000 |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | AUD |  |  |  | AUD 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital lease - real estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,290,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,368,000 | [1] |  |  |  |  | 6,316,000 |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,524,000 | [1] |  |  |  |  | $ 6,447,000 | [2] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate during period | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.50% | 5.30% |  | 5.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | [1] |  |  | 5.00% | [2] | 5.00% | [2] | 5.00% | [2] | 5.00% | [2] | 5.00% | [2] |  |  |
Senior notes [Member] | Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes payable, fair value disclosure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 725,000,000 |  |  |  |  |  |  |  |  |  |
Senior notes [Member] | Senior Notes due 2022, May 2016 Add-On Issuance [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 125,000,000 |  |
Debt Instrument, Issuance Price, Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98.76% |  |
Debt Issuance Cost |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,016,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior notes [Member] | Senior note due 2022 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 725,000,000 |  |
Senior notes [Member] | Senior note due 2022 [Member] | Senior notes due 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 550,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  | 7.125% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of tender offer premium |  |  |  |  |  |  | $ 31,530,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment, interest |  |  |  |  |  |  | 16,716,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes Two Thousand Twenty Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  | $ 125,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior notes due 2018 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  | 7.125% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from debt extinguishment |  |  |  |  |  |  | $ 38,890,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 591,736,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate during period | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate at period end | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  |  |  |  | $ 350,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,000,000
Outstanding debt | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 32,951,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 35,000,000 | [3] |  |  |  |  | $ 0 | [4] |  |  |  |  |  |  |  |  |
Real estate mortgages [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 32,280,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,000,000 |
Number of secured properties | property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  | 4 |  | 4 |  | 4 |  | 4 |  |  |  |
Debt instrument, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 25, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, description of variable rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR plus 2.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 31,810,000 | [5] |  |  |  |  | $ 37,266,000 |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 32,280,000 | [5] |  |  |  |  | 37,861,000 | [6] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate during period | [5] |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.20% | 3.80% |  | 3.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |
ESOP Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, description of variable rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The loan bears interest at a) LIBOR plus 2.38% or b) the lender’s prime rate, at Griffon’s option. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 36,520,000 | [6] |  |  |  |  | 34,150,000 |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 36,744,000 | [6] |  |  |  |  | 34,387,000 | [1] |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment, principal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 655,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate during period | [6] |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.10% | 2.90% |  | 2.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver due 2013 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, description of variable rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The revolving credit facility accrues interest at EURIBOR plus 2.20% per annum. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |
Proceeds from long-term lines of credit (in Euro) |  |  |  |  |  |  |  |  |  | € 5,000 |  |  |  |  | $ 5,612,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, percentage bearing fixed interest, percentage rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50% |  | 2.50% |  | 2.50% |  | 2.50% |  | 2.50% |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,223,000 |  |  |  | € 10,000 |  |  |  |  |  |
Proceeds from long-term lines of credit (in Euro) | € |  |  |  |  |  |  |  |  |  | 15,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly installments | € |  |  |  |  |  |  |  |  |  | € 1,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non U.S. term loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,202,000 |  |  |  |  |  | BRL 7,147 |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 38,843,000 | [2] |  |  |  |  | 33,422,000 |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,142,000 | [2] |  |  |  |  | 33,669,000 | [7] |  |  |  |  |  |  |  |  |
Maintains maximum amount of line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,944,000 |  |  |  |  |  | BRL 12,800 |  |  |  |
Non U.S. term loans [Member] | Brazilian CDI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.13% |  | 20.13% |  | 20.13% |  | 20.13% |  | 20.13% |  |  |  |
Non U.S. lines of credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, remaining borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,569,000 |  | CAD 9,910,000 |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,931,000 | [2] |  |  |  |  | 11,461,000 |  |  |  |  |  |  |  |  |  |
Long-term debt, gross | [2] |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,934,000 |  |  |  |  |  | $ 11,462,000 |  |  |  |  |  |  |  |  |  |
Proceeds from long-term lines of credit (in Euro) |  |  |  |  |  |  |  |  |  |  |  | CAD 15,000,000 |  |  | $ 11,457 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate description |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The facility accrues interest at LIBOR (USD) or the Bankers Acceptance Rate (CDN) plus 1.3% per annum. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non U.S. lines of credit [Member] | LIBOR Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.13% |  | 2.13% |  | 2.13% |  | 2.13% |  | 2.13% |  |  |  |
Non U.S. lines of credit [Member] | Bankers Acceptance Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.12% |  | 2.12% |  | 2.12% |  | 2.12% |  | 2.12% |  |  |  |
Medium-term Notes [Member] | Term Loan Due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount | AUD |  |  |  | AUD 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of loans refinanced with new debt instrument | loan |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | AUD 29,250,000 |  | $ 22,446,000 |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment, principal | AUD |  |  |  | AUD 750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid | AUD |  |  |  | AUD 21,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, ESOP | shares |  |  |  |  |  |  |  |  | 548,912 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, value, ESOP |  |  |  |  |  |  |  |  | $ 9,213,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
ESOP, weighted average purchase price of shares purchased (in Dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 16.78 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
ESOP repurchase obligation amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,695,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Convert. debt due 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, conversion ratio |  | 70.5867 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, conversion price (in Dollars per share) | $ / shares |  | $ 14.17 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | ESOP Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment, principal |  |  | $ 569,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank Bill Swap Bid Rate [Member] | Revolving Facility, June 2017 [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.67% |  | 3.67% |  | 3.67% |  | 3.67% |  | 3.67% |  |  |  |
Bank Bill Swap Bid Rate [Member] | Medium-term Notes [Member] | Term Loan Due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.20% |  | 4.20% |  | 4.20% |  | 4.20% |  | 4.20% |  |  |  |
[1] | In October 2006, CBP entered into a capital lease totaling $14,290 for real estate in Troy, Ohio. The lease matures in 2022, bears interest at a fixed rate of 5.0%, is secured by a mortgage on the real estate and is guaranteed by Griff
[2] | In September 2015, Clopay Europe GmbH (“Clopay Europe”) entered into a EUR 5,000 ($5,612 as of September 30, 2016) revolving credit facility and a EUR 15,000 term loan. The term loan is payable in twelve quarterly installments of EUR 1,250, bears interest at a fixed rate of 2.5% and matures in September 2018. The revolving facility matures in September 2017, but is renewable upon mutual agreement with the bank. The revolving credit facility accrues interest at EURIBOR plus 1.75% per annum (1.75% at September 30, 2016). The revolver and the term loan are both secured by substantially all of the assets of Clopay Europe and its subsidiaries. Griffon guarantees the revolving facility and term loan. The term loan had an outstanding balance of EUR 10,000 ($11,223 at September 30, 2016) and the revolver had no borrowings outstanding at September 30, 2016. Clopay Europe is required to maintain a certain minimum equity to assets ratio and is subject to a maximum debt leverage ratio (defined as the ratio of total debt to EBITDA). Clopay do Brasil maintains lines of credit of approximately R$12,800 ($3,944 as of September 30, 2016). Interest on borrowings accrues at a rate of Brazilian CDI plus 6.0% (20.13% at September 30, 2016). As of September 30, 2016, there was approximately R$7,147 ($2,202 as of September 30, 2016) borrowed under the lines. PPC guarantees the loan and lines.In November 2012, Garant G.P. (“Garant”) entered into a CAD 15,000 ($11,457 as of September 30, 2016) revolving credit facility. The facility accrues interest at LIBOR (USD) or the Bankers Acceptance Rate (CDN) plus 1.3% per annum (2.13% LIBOR USD and 2.12% Bankers Acceptance Rate CDN as of September 30, 2016). The revolving facility matures in October 2019. Garant is required to maintain a certain minimum equity. As of September 30, 2016, there were CAD 5,090 ($3,888 as of September 30, 2016) borrowed under the revolving credit facility with CAD 9,910 ($7,569 as of September 30, 2016) available for borrowin
[3] | On May 18, 2016, in an unregistered offering through a private placement under Rule 144A, Griffon completed the add-on offering of $125,000 principal amount of its 5.25% senior notes due 2022, at 98.76% of par, to Griffon's previous issuance of $600,000 5.25% senior notes due in 2022, at par, which was completed on February 27, 2014 (collectively the “Senior Notes”). As of May 18, 2016, outstanding Senior Notes due totaled $725,000; interest is payable semi-annually on March 1 and September 1. The net proceeds of the add-on offering were used to pay down outstanding borrowings under Griffon's Revolving Credit Facility (the "Credit Agreement"). Proceeds from the $600,000 5.25% senior notes due in 2022 were used to redeem $550,000 of 7.125% senior notes due 2018, to pay a call and tender offer premium of $31,530 and to make interest payments of $16,716, with the balance used to pay a portion of the related transaction fees and expenses. In connection with the issuance of the Senior Notes, all obligations under the $550,000 of 7.125% senior notes due in 2018 were discharged. The Senior Notes are senior unsecured obligations of Griffon guaranteed by certain domestic subsidiaries, and subject to certain covenants, limitations and restrictions. On July 20, 2016 and June 18, 2014, Griffon exchanged all of the $125,000 and $600,000 Senior Notes, respectively, for substantially identical Senior Notes registered under the Securities Act of 1933 via an exchange offer. The fair value of the Senior Notes approximated $725,000 on September 30, 2016 based upon quoted market prices (level 1 inputs).In connection with the issuance and exchange of the $125,000 senior notes, Griffon capitalized $3,016 of underwriting fees and other expenses in the quarter, which will amortize over the term of such notes; Griffon capitalized $10,313 in connection with the previously issued $600,000 senior notes. Furthermore, in connection with the issuance of the previously issued $600,000 senior notes, Griffon recognized a loss on the early extinguishment of debt on the 7.125% senior notes aggregating $38,890, comprised of the $31,530 tender offer premium, the write-off of $6,574 of remaining deferred financing fees and $786 of prepaid interest on defeased notes. (b)On March 22, 2016, Griffon amended its Revolving Credit Facility (“Credit Agreement”) to increase the credit facility from$250,000 to $350,000, extend its maturity from March 13, 2020 to March 22, 2021, and modify certain other provisions of the facility. The facility includes a letter sub-facility with a limit of $50,000 and a multi-currency sub-facility of $50,000. The Credit Agreement provides for same day borrowings of base rate loans. Borrowings under the Credit Agreement may be repaid and re-borrowed at any time, subject to final maturity of the facility or the occurrence or event of default under the Credit Agreement. Interest is payable on borrowings at either a LIBOR or base rate benchmark rate, in each case without a floor, plus an applicable margin, which adjusts based on financial performance. Current margins are 1.25% for base rate loans and 2.25% for LIBOR loans. The Credit Agreement has certain financial maintenance tests including a maximum total leverage ratio, a maximum senior secured leverage ratio and a minimum interest coverage ratio, as well as customary affirmative and negative covenants and events of default. The negative covenants place limits on Griffon's ability to, among other things, incur indebtedness, incur liens, and make restricted payments and investments. Borrowings under the Credit Agreement are guaranteed by Griffon’s material domestic subsidiaries and are secured, on a first priority basis, by substantially all domestic assets of the Company and the guarantors, and a pledge of not greater than 65% of the equity interest in Griffon’s material, first-tier foreign subsidiaries (except that a lien on the assets of Griffon’s material domestic subsidiaries securing a limited amount of the debt under the credit agreement relating to Griffon's Employee Stock Ownership Plan ("ESOP") ranks pari passu with the lien granted on such assets under the Credit Agreement; see footnote (d) below). At September 30, 2016, there were no outstanding borrowings and standby letters of credit were $16,275 under the Credit Agreement; $333,725 was available, subject to certain loan covenants, for borrowing at that date
[4] | On December 21, 2009, Griffon issued $100,000 principal of 4% convertible subordinated notes due 2017 (the “2017 Notes”). As of September 30, 2016, the current conversion rate of the 2017 Notes was 70.1632 shares of Griffon’s common stock per $1 principal amount of notes, corresponding to a conversion price of $14.25 per share. Since July 15, 2016, any holder has had the option to convert such holder's notes. Under the terms of the 2017 Notes, Griffon has the right to settle the conversion of the 2017 Notes in cash, stock or a combination of cash and stock. On July 14, 2016, Griffon announced that it will settle, upon conversion, up to $125,000 of the conversion value of the 2017 Notes in cash, with amounts in excess of $125,000, if any, to be settled in shares of Griffon common stock. At both September 30, 2016 and 2015, the 2017 Notes had a capital in excess of par component, net of tax, of $15,720. The fair value of the 2017 Notes approximated $121,563 on September 30, 2016 based upon quoted market prices (level 1 inputs)
[5] | In September 2015 and March 2016, Griffon entered into mortgage loans in the amount of $32,280 and $8,000, respectively. The mortgage loans are secured by four properties occupied by Griffon's subsidiaries. The loans mature in September 2025, and April 2018, respectively, are collateralized by the specific properties financed and are guaranteed by Griffon. The loans bear interest at a rate of LIBOR plus 1.50%.
[6] | In August 2016, Griffon’s ESOP entered into an agreement that refinanced the existing ESOP loan into a new Term Loan in the amount of $35,092 (the "Agreement"). The Agreement also provided for a Line Note with $10,908 available to purchase shares of Griffon common stock in the open market. The availability period for the Line Note runs through August 2017 at which point the outstanding balance under the Line Note will be combined with the Term Loan. The Term Loan and Line Note bear interest at LIBOR plus 2.50%. The Term Loan requires quarterly principal payments of $655 through September 30, 2016 and $569 thereafter, with a balloon payment due at maturity on March 22, 2020. The Term Loan is secured by shares purchased with the proceeds of the loan and with a lien on a specific amount of Griffon assets (which lien ranks pari passu with the lien granted on such assets under the Credit Agreement) and is guaranteed by Griffon. As of September 30, 2016, $34,150, net of issuance costs, was outstanding under the Term Loan. Subsequent to September 30, 2016 and through November 11, 2016, Griffon's ESOP purchased 548,912 shares of common stock for a total of $9,213 or $16.78 per share. The remaining amount available on the authorization is $1,695.
[7] | n July 2016, Griffon Australia and its Australian subsidiaries entered into an AUD 30,000 term loan and an AUD 10,000 revolver. The term loan refinanced two existing term loans and the revolver replaced two existing lines. The term loan requires quarterly principal payments of AUD 750 plus interest with a balloon payment of AUD 21,000 due upon maturity in June 2019, and accrues interest at Bank Bill Swap Bid Rate “BBSY” plus 2.25% per annum (4.20% at September 30, 2016). As of September 30, 2016, the term had an outstanding balance of AUD 29,250 ($22,446 as of September 30, 2016) on the term loans, net of issuance costs. The revolving facility matures in June 2017 but is renewable upon mutual agreement with the bank, and accrues interest at BBSY plus 2.0% per annum (3.67% at September 30, 2016). The revolver had an outstanding balance of AUD 7,000 ($5,372 at September 30, 2016). The revolver and the term loan are both secured by substantially all of the assets of Griffon Australia and its subsidiaries. Griffon guarantees the term loan. Griffon Australia is required to maintain a certain minimum equity level and is subject to a maximum leverage ratio and a minimum fixed charges cover ratio.(h)

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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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- Definition The average effective interest rate during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments including both interest and principal payments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt. + References No definition available. + Details
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- Definition Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees). + References No definition available. + Details
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- Definition An entity will typically disclose the amount of any repurchase obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The effective interest rate during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Definition Fair value portion of notes payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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