Leases - Minimum Lease Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Operating Leases, After Adoption of 842
2019 Remaining	$ 1,114
2020	4,545
2021	3,639
2022	2,638
2023	1,173
2024	0
Thereafter	0
Total minimum lease payments	13,109
Sublease income, After Adoption of 842
2019 Remaining	(82)
2020	(82)
2021	0
2022	0
2023	0
2024	0
Thereafter	0
Total minimum lease payments	(164)
Net, After Adoption of 842
2019 Remaining	1,032
2020	4,463
2021	3,639
2022	2,638
2023	1,173
2024	0
Thereafter	0
Total minimum lease payments	12,945
Less: Amount representing interest	(1,299)
Present value of lease payments	$ 11,646
Operating Leases, Before Adoption of 842
2019		$ 3,670
2020		3,572
2021		2,961
2022		2,001
2023		573
Thereafter		0
Total minimum lease payments		12,777
Capital Leases, Before Adoption of 842
2019		40
2020		36
2021		0
2022		0
2023		0
Thereafter		0
Total minimum lease payments		76
Less: Amount representing interest		(6)
Capital lease obligation		$ 70

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount of minimum lease payments for capital leases.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.

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Amount of lease payments to be received by lessor for operating lease.

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Amount of lease payments to be received by lessor after fifth fiscal year following latest statement of financial position date for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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