Commitments and Contingencies (Leases) (Details) $ in Thousands |
Sep. 30, 2018
USD ($)
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|---|---|
| Future annual minimum lease commitments under operating leases | |
| Operating leases, future minimum commitments | $ 109,048 |
| X | ||||||||||
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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