Leases - Maturities of Lease Liability (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Operating Lease Liabilities Maturity - After Adoption of 842
2020	$ 30,724
2021	27,021
2022	21,035
2023	12,858
2024	10,326
Thereafter	30,942
Total lease payments	132,906
Less: interest	(15,943)
Present value of lease liabilities	116,963
Payments for lease agreements not yet commenced	$ 1,400
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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-Publisher FASB
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-SubTopic 20
-Section 50
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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.

+ References

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on a 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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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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