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Commitments and Contingencies (Future Minimum Rental Commitments) (Details) $ in Thousands	Sep. 30, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2019	$ 28,945
2019	(927)
2019	28,018
2020	27,287
2020	(364)
2020	26,923
2021	24,471
2021	(79)
2021	24,392
2022	22,808
2022	(81)
2022	22,727
2023	8,853
2023	(21)
2023	8,832
Thereafter	40,622
Thereafter	0
Gross	152,986
Sublease income	1,472
Operating Leases - Total	$ 151,514

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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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