Leases - Future Minimum Rental Commitments Under Operating Leases (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Operating Lease Liabilities, Future Minimum Rental Payments Due [Abstract]
For the year ended 2019	$ 7,068
For the year ended 2020	5,635
For the year ended 2021	4,509
For the year ended 2022	3,523
For the year ended 2023	2,659
For the year ended 2024 and beyond	$ 7,779

Amount of lessee's obligation for future rental payments for operating lease, due after fifth fiscal year following latest fiscal year.

No definition available.

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Amount of lessee's obligation for future rental payments for operating lease, due in next fiscal year following latest fiscal year.

No definition available.

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

No definition available.

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

No definition available.

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Amount of lessee's obligation for future rental payments for operating lease, due in fourth fiscal year following latest fiscal year.

No definition available.

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Amount of lessee's obligation for future rental payments for operating lease, due in third fiscal year following latest fiscal year.

No definition available.

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No definition available.

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