Leases - Schedule of Minimum Contractual Lease Payments and Other Information (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Operating leases
2020	$ 5,559
2021	21,839	$ 10,138
2022	20,222	10,602
2023	18,667	10,137
2024	16,138	9,055
2024		7,318
Thereafter	23,503
Thereafter		7,265
Total	105,928	54,515
Short-term leases
2020	74
2021	47	143
2022	0	7
2023	0	0
2024	0	0
2024		0
Thereafter	0
Thereafter		0
Total	121	150
Total contractual base rents (1)
2020	5,633
2021	21,886	10,281
2022	20,222	10,609
2023	18,667	10,137
2024	16,138	9,055
2024		7,318
Thereafter	23,503
Thereafter		7,265
Total	106,049	54,665
Total liability to make lease payments	91,202	46,498
Difference in undiscounted and discounted future lease payments	$ 14,847	$ 8,167
Weighted average discount rate	5.70%	6.13%
Weighted average remaining lease term (years)	5 years 4 months 24 days	5 years 4 months 24 days

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Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Two

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Lessee, Operating Lease, Liability, to be Paid, after Year Four

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Lessee, Operating Lease, Long-term and Short-term, Liability, Undiscounted Excess Amount

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Amount of lessee's undiscounted obligation for lease payment for operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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