Note 9 - Debt - Summary of Term Loans (Details) - USD ($) $ in Thousands			12 Months Ended
		Apr. 12, 2019	Dec. 31, 2019		May 01, 2017
Total debt, including capital leases, Total	[1]		$ 1,753,045
Secured Debt [Member]
Original Principal			1,775,000		$ 750,000
Outstanding Principal			1,753,045
Total debt, including capital leases, Total			1,517,195
Secured Debt [Member] | Term Loan A-2 [Member]
Original Principal	[2],[3]		700,000
Outstanding Principal	[2],[3]		694,045
Total debt, including capital leases, Total	[2],[3]		$ 513,945
Interest Rate	[2],[3]		3.30%
Secured Debt [Member] | Term Loan A-2 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Applicable Margin	[2],[3],[4]		1.50%
Secured Debt [Member] | Term B-1 Loan [Member]
Original Principal			$ 500,000
Outstanding Principal			487,500
Total debt, including capital leases, Total			$ 466,250
Interest Rate			3.55%
Amortization Per Annum	[5]		1.00%
Secured Debt [Member] | Term B-1 Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Applicable Margin	[4]		1.75%
Secured Debt [Member] | Term B-2 Loan [Member]
Original Principal			$ 250,000
Outstanding Principal			248,125
Total debt, including capital leases, Total			$ 233,125
Interest Rate			3.80%
Amortization Per Annum	[5]		1.00%
Secured Debt [Member] | Term B-2 Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Applicable Margin	[4]		2.00%
Secured Debt [Member] | Term B-3 Loan [Member]
Original Principal			$ 325,000
Outstanding Principal			323,375
Total debt, including capital leases, Total			$ 303,875
Interest Rate			3.80%
Amortization Per Annum	[5]		1.00%
Secured Debt [Member] | Term B-3 Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Applicable Margin		2.00%	2.00%	[4]

[1] Debt payments include principal repayment obligations for the Company's outstanding debt instruments as of December 31, 2019.

[2] On May 8, 2019, $250.0 million was drawn. On October 1, 2019, an additional $450.0 million was drawn.

[3] Per annum amortization rates for years one through five following the closing date are 2.5%, 2.5%, 5.0%, 7.5% and 12.5%, respectively.

[4] The Term Loan A-2 interest rate spread can vary between 1.25% and 1.75%, determined on a quarterly basis by reference to a pricing grid based on the Company's total net leverage ratio. All other applicable margins are fixed.

[5] Payable in equal quarterly installments (expressed as a percentage of the original principal amount). All loans may be prepaid at any time without penalty or premium (subject to customary LIBOR breakage provisions).