Leases (Tables)

3 Months Ended

Mar. 31, 2020

Leases

Summary of total lease cost

	For the Three Months Ended
	March 31,
	2020		2019
Operating lease cost	$	83,195	$	78,814
Short-term operating lease cost		1,784		2,058
Variable operating lease cost		20,333		18,378
Sublease income		(1,175)		(957)
Total lease cost	$	104,137	$	98,293

Other lease related information

	For the Three Months Ended
	March 31,
	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows from operating leases	$	82,607	$	78,298
Right-of-use assets obtained in exchange for new operating lease liabilities	$	71,131	$	10,940