Interim Consolidated Financial Statements (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Summary of End-of-period Cash and Cash Equivalents and Cash, Cash Equivalents and Restricted Cash from Financial Statements

The following table summarizes the end-of-period cash and cash equivalents from the Company's Consolidated Balance Sheets and the total cash, cash equivalents and restricted cash as presented in the accompanying Consolidated Statements of Cash Flows (in thousands).

	Nine Months Ended September 30,
	2019		2018
Cash and cash equivalents	$	67,629	$	92,057
Restricted cash classified in (1):
Prepaid expenses and other current assets		717		—
Other assets		628		—
Cash, cash equivalents and restricted cash shown in statement of cash flows	$	68,974	$	92,057

(1) Restricted cash consists primarily of collateral required for letters of credit. The short-term or long-term classification is determined in accordance with the expiration of the underlying lease as the letters of credit are non-cancellable while the leases are in effect.

Summary of Components of Lease Expense

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

	Three Months Ended			Nine Months Ended
	September 30, 2019			September 30, 2019
Operating lease cost	$	3,851		$	11,215
Short-term lease cost		80			420
Variable lease cost		1,197			3,888
Sublease income		(54	)		(121	)
Total lease cost	$	5,074		$	15,402

Summary of Additional Lease Information

Additional lease information is summarized in the following table (in thousands, except lease term and discount rate):

	Nine Months Ended
	September 30, 2019
Cash paid for amounts included in the measurement of operating    lease liabilities	$	9,111
Operating right-of-use assets obtained in exchange for lease    obligations	$	17,770
Weighted-average remaining lease term - operating leases (years)		6.6
Weighted-average discount rate - operating leases		5.1	%

Summary of Future Minimum Lease Payments Under Non-Cancellable Leases

Future minimum lease payments under non-cancellable leases as of September 30, 2019 are as follows (in thousands):

2019	$	2,789
2020		15,546
2021		13,772
2022		13,321
2023		13,025
Thereafter		36,443
Total lease payments		94,896
Less imputed interest		(14,889	)
Present value of lease liabilities	$	80,007

Summary of Lease Balances

Lease balances as of September 30, 2019 are as follows (in thousands):

Operating lease right-of-use assets	$	71,093
Short-term operating lease liabilities (1)	$	16,178
Non-current operating lease liabilities		63,829
Total operating lease liabilities	$	80,007

(1) Included in accrued expenses and other current liabilities

Future Contractual Obligations for Operating Leases

Under prior GAAP, as of December 31, 2018, the Company’s future contractual obligations for operating leases were as follows (in thousands):

2019	$	12,498
2020		11,762
2021		10,145
2022		8,552
2023		7,856
Thereafter		22,222
Total minimum lease payments	$	73,035