Summary of Significant Accounting Policies - (Tables)

3 Months Ended

Mar. 31, 2018

Item Effected [Line Items]

Schedule of Prospective Adoption of New Accounting Pronouncements

Condensed Consolidated Statement of Income

	Three Months Ended   March 31, 2017
(Stated in thousands)	As Reported		Reclassification			As Adjusted
Selling, general and administrative expenses	$	258,045	$	(5,050	)	$	252,995
Non-operating expenses	797		5,050			5,847