Leases

6 Months Ended

Jun. 30, 2020

(8) Leases

The Company enters into leases for real estate and equipment. Real estate leases are for our corporate office space and laboratories around the world. Real estate leases have remaining lease terms of less than 1 year to 20 years. Many of the Company’s leases include options to extend the leases on a month to month basis or for set periods for up to 20 years. Many leases also include options to terminate the leases within 1 year or per other contractual terms.

The components of lease expense were as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Operating lease cost	$	4,871	$	3,220	$	8,639	$	6,337
Variable lease cost		1,184		752		2,070		1,346

Supplemental cash flow information related to the leases was as follows (in thousands):

	Six Months Ended June 30,
	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	6,111	$	4,686

Right-of-use assets obtained in exchange for lease obligations:
Operating leases		68,171		4,561

Supplemental balance sheet information related to the leases was as follows (in thousands):

	As of
	June 30,			December 31,
	2020			2019
Operating lease right-of-use assets	$	113,566		$	52,152

Other current liabilities	$	13,950		$	10,977
Operating lease liabilities		114,984			45,212
Total operating lease liabilities	$	128,934		$	56,189

Weighted Average Remaining Lease Term (years)
Operating leases	13.1			6.3
Weighted Average Discount Rate
Operating leases		5.9	%		6.0	%

Lease payments due related to lease liabilities as of June 30, 2020 were as follows (in thousands):

	Related Party			Non-Related Parties			Total
	Operating Leases			Operating Leases			Operating Leases
Remainder of 2020	$	5,287		$	4,538		$	9,825
2021		10,252			10,631			20,883
2022		10,037			7,479			17,516
2023		8,501			6,321			14,822
2024		8,623			4,700			13,323
Later years		106,676			11,608			118,284
Total lease payments		149,376			45,277			194,653
Less: imputed interest		(59,666	)		(6,053	)		(65,719	)
Total	$	89,710		$	39,224		$	128,934

The Company began to occupy an additional leased corporate headquarters building in the second quarter of fiscal year 2020. See Note 12 for details of this related party lease.