Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of investment assets and derivatives measured at fair value on recurring basis

The following table presents the Company’s investment assets (excluding equity and cost method investments) and derivatives measured at fair value on a recurring basis as of September 30, 2018 and December 31, 2017 (in thousands):

	September 30, 2018
	Level 1		Level 2			Level 3		Total
Certificates of deposit (non-U.S.)	$	—	$	39,640		$	—	$	39,640
Corporate obligations		—		14			—		14
Money markets		37		—			—		37
Mutual funds		86		—			—		86
Other investments		—		5,859			—		5,859
Interest rate derivatives — asset derivatives		—		24,480			—		24,480
Interest rate derivatives — liability derivatives		—		—			—		—
Foreign currency contracts — asset position		—		3,806			—		3,806
Foreign currency contracts — liability position		—		(605	)		—		(605	)

	December 31, 2017
	Level 1		Level 2			Level 3		Total
Certificates of deposit (non-U.S.)	$	—	$	12,809		$	—	$	12,809
Corporate bonds		—		11,065			—		11,065
Corporate obligations		—		13			—		13
Money markets		38		—			—		38
Mutual funds		79		—			—		79
Other investments		—		5,588			—		5,588
Interest rate derivatives — asset derivatives		—		10,156			—		10,156
Interest rate derivatives — liability derivatives		—		(4,024	)		—		(4,024	)
Foreign currency contracts — asset position		—		405			—		405
Foreign currency contracts — liability position		—		(8,802	)		—		(8,802	)