Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt as of December 31, 2017 and 2016 consists of the following:

		December 31, 2017								December 31, 2016
(in thousands)		Gross		Debt Issuance Costs			Net			Gross		Debt Issuance Costs			Net
Bank debt:
	Term loan facility borrowings due August 2022, weighted-average interest rate of 3.28% as of December 31, 2017	$	1,755,000	$	(17,017	)	$	1,737,983		$	—	$	—		$	—
	Revolving line of credit borrowings due August 2022	—		(6,672		)	(6,672		)	—		—			—
	Term loan facility borrowings due April 2020, weighted-average interest rate of 2.31% as of December 31, 2016, extinguished August 2017	—		—			—			1,298,125		(12,419		)	1,285,706
	Revolving line of credit borrowings due April 2020, weighted-average interest rate of 2.31% as of December 31, 2016, extinguished August 2017	—		—			—			302,000		(4,761		)	297,239
Notes:
	7.55% senior debentures due April 2028	14,645		(48		)	14,597			14,645		(52		)	14,593
Other debt:
	Various interest rates with maturities through 2021	7,662		—			7,662			4,509		—			4,509
Total long-term debt		1,777,307		(23,737		)	1,753,570			1,619,279		(17,232		)	1,602,047
Less current portion of long-term debt		70,046		—			70,046			105,158		—			105,158
Long-term debt, net of current portion		$	1,707,261	$	(23,737	)	$	1,683,524		$	1,514,121	$	(17,232	)	$	1,496,889

Schedule of Maturities of Long-term Debt

The aggregate annual maturities for long-term debt are as follows:

(in thousands)
Year ending December 31,
2018	$	70,046
2019	116,281
2020	181,076
2021	180,259
2022	1,215,000
Thereafter	14,645
Total	$	1,777,307