CREDIT AGREEMENTS - Credit Facilities (Details) - 3 months ended Mar. 31, 2016 NZD in Thousands, AUD in Thousands, $ in Thousands	AUD Rate	NZD Rate	USD ($) Rate
Lloyds [Member]
Line of Credit Facility [Line Items]
Debt Turns in days	55
National Australia Bank Limited and Bank of New Zealand [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Covenants, Minimum Fixed Charges Coverage Ratio Required | Rate	150.00%	150.00%	150.00%
Line of Credit Facility, Covenants, Minimum Receivables Ratio | Rate	120.00%	120.00%	120.00%
Financial Guarantee Facility | National Australia Bank Limited and Bank of New Zealand [Member]
Line of Credit Facility [Line Items]
Financial guarantee capacity	AUD 3,000		$ 2,297
Less: outstanding financial guarantee requested			1,855
Additional availability for financial guarantee			$ 442
Interest rates on financial guarantee requested	1.80%	1.80%	1.80%
Australian Receivables Facility [Member] [Domain] | National Australia Bank Limited and Bank of New Zealand [Member]
Line of Credit Facility [Line Items]
Borrowing capacity	AUD 4,000		$ 3,063
NEW ZEALAND | New Zealand Receivables Agreement [Member] | National Australia Bank Limited and Bank of New Zealand [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Fee Amount		NZD 1	1
Long-term Line of Credit			(56)
Borrowing capacity		NZD 5,000	3,455
Additional borrowing availability			$ 1,785
Interest rates on outstanding borrowing	4.60%	4.60%	4.60%
Line of Credit Facility, Current Borrowing Capacity			$ 1,841
Australia [Member] [Member] | Australian Receivables Facility [Member] [Domain] | National Australia Bank Limited and Bank of New Zealand [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Fee Amount			5
Borrowing capacity	AUD 25,000		19,143
Less: outstanding borrowing			(5,206)
Additional borrowing availability			$ 9,297
Interest rates on outstanding borrowing	3.65%	3.65%	3.65%
Line of Credit Facility, Current Borrowing Capacity			$ 14,503