Operating Leases - Future Minimum Payments (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Minimum lease payments, 2019	$ 12,633
Minimum lease payments, 2020	10,638
Minimum lease payments, 2021	9,258
Minimum lease payments, 2022	8,866
Minimum lease payments, 2023	3,514
Minimum lease payments, Thereafter	0
Minimum lease payments, Total	44,909
Future Minimum Sublease Rentals, Sale Leaseback Transactions, Fiscal Year Maturity [Abstract]
Minimum sublease rentals, 2019	(124)
Minimum sublease rentals, 2020	0
Minimum sublease rentals, 2021	0
Minimum sublease rentals, 2022	0
Minimum sublease rentals, 2023	0
Minimum sublease rentals, Thereafter	0
Minimum sublease rentals, Total	(124)
Future Minimum Lease Payments Net [Abstract]
Future minimum payments, net, 2019	12,509
Future minimum payments, net, 2020	10,638
Future minimum payments, net, 2021	9,258
Future minimum payments, net, 2022	8,866
Future minimum payments, net, 2023	3,514
Future minimum payments, net, Thereafter	0
Future minimum payments, net, Total	$ 44,785

Future Minimum Lease Payments Net [Abstract]

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Operating Leases Future Minimum Payments Due In Five Years, Net of Sublease Rentals

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Operating Leases Future Minimum Payments Due In Four Years, Net of Sublease Rentals

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Operating Leases Future Minimum Payments Due In Three Years, Net of Sublease Rentals

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Operating Leases Future Minimum Payments Due In Two Years, Net of Sublease Rentals

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Operating Leases Future Minimum Payments Due Thereafter, Net of Sublease Rentals

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Operating Leases Future Minimum Payments Due Total, Net of Sublease Rentals

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Amount of minimum sublease rentals to be received by the seller-lessee for sale-leaseback transactions accounted for using the deposit method or as a financing.

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Amount of minimum sublease rentals for sale-leaseback transactions accounted for using the deposit method or as a financing to be received by the seller-lessee after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum sublease rentals for sale-leaseback transactions accounted for using the deposit method or as a financing to be received by the seller-lessee in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum sublease rentals for sale-leaseback transactions accounted for using the deposit method or as a financing to be received by the seller-lessee in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum sublease rentals for sale-leaseback transactions accounted for using the deposit method or as a financing to be received by the seller-lessee in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum sublease rentals for sale-leaseback transactions accounted for using the deposit method or as a financing to be received by the seller-lessee in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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