U.K. Pension Plan (Tables)

3 Months Ended

Mar. 31, 2019

Defined Benefit Plan [Abstract]

Schedule of Net Benefit Costs

The following tables summarize the components of the Pension Program related to the net benefit costs recognized in labor and benefits and other income/(loss), net in the Company's consolidated statements of operations for the three months ended March 31, 2019 and 2018 (dollars in thousands):

		Three Months Ended
		March 31,
		2019			2018
Operating expense:
	Service cost(a)	$	3,440		$	3,872
Nonoperating income, net:
	Interest cost	2,366			2,556
	Expected return on plan assets	(4,391		)	(4,905		)
	Amortization of prior year service cost	44			—
	Total nonoperating income, net(b)	(1,981		)	(2,349		)
Net periodic benefit cost		$	1,459		$	1,523

(a) Included in labor and benefits within the Company’s consolidated statement of operations.

(b) Included in other income/(loss), net within the Company’s consolidated statement of operations.