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Acquisitions (Details) - USD ($) $ in Millions |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 30, 2016 | Nov. 02, 2016 | Feb. 26, 2016 | Nov. 30, 2015 | Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Oct. 30, 2016 | Apr. 03, 2016
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  | 11 years 6 months |  |  |
Goodwill resulted through acquisition |  |  |  |  | $ 532.7 | $ 532.7 | $ 489.0 | $ 493.4 |
Redeemable financial instrument |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Liability recorded at acquisition date fair value |  |  |  |  | $ 5.8 | $ 5.8 | $ 5.7 |  |
Customer relationships |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  | 11 years 8 months 12 days |  |  |
Technology |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  | 9 years 1 month 6 days |  |  |
Trade name |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  | 15 years 1 month 6 days |  |  |
PVI Riverside Holdings, Inc Member |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Outstanding shares acquired (as a percent) |  | 100.00% |  |  |  |  |  |  |
Aggregate consideration, net |  | $ 79.2 |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  | 16 years 1 month 6 days |  |  |
Goodwill resulted through acquisition |  | 39.1 |  |  |  |  |  |  |
Purchase price allocated to intangible assets |  | 31.0 |  |  |  |  |  |  |
Goodwill deductible for tax purposes |  | 6.9 |  |  |  |  |  |  |
Accounts receivable |  | 5.8 |  |  |  |  |  |  |
Inventory |  | 12.9 |  |  |  |  |  |  |
Fixed assets |  | 8.5 |  |  |  |  |  |  |
Deferred tax assets |  | 1.3 |  |  |  |  |  |  |
Other assets |  | 1.4 |  |  |  |  |  |  |
Accounts payable |  | (2.7) |  |  |  |  |  |  |
Accrued expenses and other |  | 8.5 |  |  |  |  |  |  |
Deferred tax liability |  | $ (9.6) |  |  |  |  |  |  |
PVI Riverside Holdings, Inc Member | Customer relationships |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  | 15 years |  |  |  | 15 years |  |  |
Purchase price allocated to intangible assets |  | $ 17.6 |  |  |  |  |  |  |
PVI Riverside Holdings, Inc Member | Technology |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  | 10 years |  |  |  | 10 years |  |  |
Purchase price allocated to intangible assets |  | $ 10.2 |  |  |  |  |  |  |
PVI Riverside Holdings, Inc Member | Trade name |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  | 20 years |  |  |  | 20 years |  |  |
Purchase price allocated to intangible assets |  | $ 3.2 |  |  |  |  |  |  |
Aerco Korea |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Outstanding shares acquired (as a percent) | 10.00% |  | 50.00% |  |  |  |  |  |
Ownership interest acquired (as a percent) | 10.00% |  |  |  | 10.00% |  |  |  |
Aggregate consideration, net | $ 0.8 |  | $ 4.0 |  |  |  |  |  |
Percentage of ownership before transaction |  |  | 40.00% |  |  |  |  |  |
Aggregate ownership percentage |  |  |  |  | 100.00% | 100.00% |  |  |
Shares remaining to be acquired |  |  |  |  |  |  |  |  | 10.00%
Pre-tax gain on the previously held ownership interest |  |  |  |  |  |  |  |  | $ 1.7
Liability recorded at acquisition date fair value |  |  | $ 0.8 |  |  |  |  |  | $ 0.8
Goodwill resulted through acquisition | 3.7 |  | $ 3.3 |  |  |  |  |  |
Purchase price allocated to intangible assets | $ 1.6 |  |  |  |  |  |  |  |
Aerco Korea | Customer relationships |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 10 years |  |  | 10 years |  |  |
Purchase price allocated to intangible assets |  |  | $ 1.6 |  |  |  |  |  |
Apex |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Outstanding shares acquired (as a percent) |  |  |  | 80.00% |  |  |  |  |
Aggregate consideration, net |  |  |  | $ 20.4 |  |  |  |  |
Shares remaining to be acquired |  |  |  | 20.00% |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 13 years |  |
Number of years of closing |  |  |  | 3 years |  |  |  |  |
Goodwill resulted through acquisition |  |  |  | $ 12.9 |  |  |  |  |
Purchase price allocated to intangible assets |  |  |  | 10.1 |  |  |  |  |
Apex | Redeemable financial instrument |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Liability recorded at acquisition date fair value |  |  |  | $ 5.5 |  |  |  |  |
Apex | Customer relationships |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  | 10 years |  |  | 10 years |  |
Apex | Trade name |  |  |  |  |  |  |  |  |
Acquisition |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  | 15 years |  |  | 15 years |  |

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