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v3.19.1

Leases (Narrative) (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2019 USD ($) stores
Leases |
Future minimum sublease income under non-cancelable subleases | $ 16.3
Related parties [Member] |
Related Parties |
Number of stores | stores | 74
Lease payments under related party operating leases | $ 1.2

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