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Minimum Lease Payments (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2016
Minimum |
Capital Leases And Operating Leases [Line Items] |
Capital leases, future minimum payments, interest included in payments, interest rate | 2.00%
Maximum |
Capital Leases And Operating Leases [Line Items] |
Capital leases, future minimum payments, interest included in payments, interest rate | 3.10%

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- Details
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Balance Type: |
Period Type: |

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- Details
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