Note 7 - Debt (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

	June 30, 2016		December 31, 2015
U.S. term loan, which matures on May 28, 2019; principal repayable on May 28, 2019; weighted average interest rate of 3.6% for the six month period ended June 30, 2016	$	24,375	$	49,375
Canadian term loan, which matures on May 28, 2019; 1.25% of aggregate principal repayable per quarter beginning December 31, 2015; weighted average interest rate of 3.7% for the six month period ended June 30, 2016		311,274		300,165
U.S. revolving credit facility, which matures on May 28, 2019, with available commitments up to $50.0 million; weighted average interest rate of 5.3% for the six month period ended June 30, 2016		1,500		--
Canadian revolving credit facility, which matures on May 28, 2019, with available commitments up to $100.0 million; weighted average interest rate of 3.9% for the six month period ended June 30, 2016		33,823		52,020
Canadian revolving credit facility, which matures on May 28, 2019, with available commitments up to $100.0 million; weighted average interest rate of 4.5% for the six month period ended June 30, 2016		4,612		--
Australian revolving credit facility, which matures on May 28, 2019, with available commitments up to $100.0 million; weighted average interest rate of 5.2% for the six month period ended June 30, 2016		20,441		--
		396,025		401,560
Less: Unamortized debt issuance costs		4,908		4,683
Total debt		391,117		396,877
Less: Current portion of long-term debt, including unamortized debt issuance costs, net		15,934		17,461
Long-term debt, less current maturities	$	375,183	$	379,416

Schedule Of Changes In Maximum Leverage Ratio [Table Text Block]

	Maximum Leverage Ratio
Period Ended
December 31, 2015		4.00	:	1.00
March 31, 2016		4.25	:	1.00
June 30, 2016		5.25	:	1.00
September 30, 2016		5.50	:	1.00
December 31, 2016		5.50	:	1.00
March 31, 2017		5.25	:	1.00
June 30, 2017		5.25	:	1.00
September 30, 2017		5.00	:	1.00
December 31, 2017		5.00	:	1.00
March 31, 2018		4.75	:	1.00
June 30, 2018		3.75	:	1.00
September 30, 2018 & thereafter		3.50	:	1.00