Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments and Obligations

The following table presents these commitments and obligations as of December 31, 2017:

			By Period
	Total		Less than 1  year		1 to 3 years		3 to 5 years		More than 5  years
	(In thousands)
Purchase obligations	$	409,802	$	256,834	$	152,968	$	—	$	—
Guarantees	135,053		120,278		14,775		—		—
Letters of credit	42,419		25,653		11,103		169		5,494
	$	587,274	$	402,765	$	178,846	$	169	$	5,494

Estimated Future Minimum Rental Payments Under Operating Leases

The following table presents our estimated future minimum rental payments under operating leases with noncancelable lease terms that expire after December 31, 2017, in thousands:

Year ending December 31,
2018	$	138,785
2019	121,017
2020	103,695
2021	79,192
2022	72,901
2023 and thereafter	333,792
	$	849,382