Leases - Maturities of Lease Liability (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Operating Lease Liabilities Maturity - After Adoption of 842
2020	$ 31,185
2021	26,474
2022	19,440
2023	12,524
2024	10,539
Thereafter	28,753
Total lease payments	128,915
Less: interest	(15,083)
Present value of lease liabilities	113,832
Payments for lease agreements not yet commenced	$ 2,000
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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-SubTopic 20
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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 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 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 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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