Note 6 - Leases (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Lease, Cost [Table Text Block]

	Quarter Ended September 30, 2019		Nine Months Ended September 30, 2019
Operating lease cost	$	5,501	$	16,891
Short-term lease cost		8,125		20,846
Total lease cost	$	13,626	$	37,737

	Quarter Ended September 30, 2019		Nine Months Ended September 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows – Operating leases	$	5,461	$	16,905
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	3,150	$	10,982

Lease, Supplemental Financial Statement Disclosures, Balance Sheet [Table Text Block]

	September 30, 2019(1)
Operating leases:
Operating lease assets	$	65,211
Accrued expenses	$	16,008
Other liabilities		50,903
Total operating lease liabilities	$	66,911
Weighted-average remaining lease term (in years)		5.49
Weighted-average discount rate		6.17	%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

	September 30, 2019
Three months ended December 31, 2019	$	4,890
2020		17,684
2021		15,034
2022		11,974
2023		9,609
Thereafter		19,376
Total undiscounted operating lease liabilities		78,567
Less: Imputed interest		(11,656	)
Total discounted operating lease liabilities	$	66,911