Leases - Maturities of Lease Liability (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Operating Lease Liabilities Maturity - After Adoption of 842
2020	$ 30,365
2021	25,692
2022	17,443
2023	12,121
2024	10,442
Thereafter	27,470
Total lease payments	123,533
Less: interest	(14,299)
Present value of lease liabilities	109,234
Payments for lease agreements not yet commenced	$ 6,000
Operating Lease Maturity - Before Adoption of 842
2019		$ 33,600
2020		28,399
2021		23,485
2022		13,770
2023		10,316
Thereafter		32,745
Total		$ 142,315

Lessee, Operating Lease, Lease Not yet Commenced, Amount

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

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position 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 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 required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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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