Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Future Principal Debt Payments and Minimum Lease Payments Under Non-Cancelable Operating And Capital Leases

Commitments for minimum rentals under non-cancellable leases, debt obligations, and future purchase obligations as of December 31, 2017 were as follows:

Year	Debt			Capital Leases			Operating Leases			Future Purchase Obligations
	(in thousands)
2018	$	14,500		$	20		$	6,937		$	541
2019	14,500			20			4,835			406
2020	14,500			8			3,015			—
2021	356,779			—			1,847			—
2022	—			—			1,209			—
Thereafter	—			—			1,828			—
Total	$	400,279		$	48		$	19,671		$	947
Less: sublease income							(2,215		)
Net lease payments							$	17,456
Less: amount representing interest				(5		)
Present value of obligations under capital leases				$	43
Less: current portion	(14,500		)	(17		)
Long-term obligations	$	385,779		$	26