Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Cash Flows (Details)

v3.10.0.1
Summary of Significant Accounting Policies - Cash Flows (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Cash flows from operating activities                      
Net income $ 6.7 $ 14.9 $ 21.1 $ 15.9 $ 5.8 $ 12.4 $ 15.8 $ 17.7 $ 58.6 $ 51.7 $ 32.8
Adjustments to reconcile net income to net cash provided by (used in) operating activities:                      
Lower of cost or market adjustment to inventory 2.8 $ 1.2 (0.2) (0.9) (2.8) (0.7) $ 0.7 (0.8) 2.9 (3.6) (1.7)
Unrealized (gain) loss on derivatives                 2.8 0.8 (3.1)
Depreciation                 21.1 18.5 14.8
Amortization of intangible assets                 0.4 0.1 0.1
Amortization of debt discount and issuance costs                 1.2 1.3 2.0
Loss on extinguishment of debt     $ 0.5     $ 0.2     0.5 0.2 23.4
Uncertain tax positions                 0.0 2.1 0.0
Share-based compensation expense                 6.7 8.2 6.9
Provision for bad debts, net of reductions                 0.8 0.1 (0.3)
Deferred income taxes                 5.3 18.0 4.7
Loss on disposal of property, plant and equipment                 0.3 0.0 0.1
Accounts receivable                 31.6 (49.8) (15.0)
Inventories                 (13.3) (9.7) 13.0
Prepaid expenses and other current assets                 1.0 2.6 2.5
Accounts payable                 (1.5) 18.9 18.5
Accrued liabilities                 3.5 (10.1) 0.9
Accrued interest                 (0.1)   (2.8)
Income taxes, net                 0.1 0.9 (1.2)
Other, net                 0.2 (1.0) 0.4
Net cash provided by (used in) operating activities                 122.1 49.2 96.0
Cash flows from investing activities                      
Capital expenditures                 (26.2) (24.7) (34.4)
Business acquisition                 (1.7) (40.0) 0.0
Proceeds from sale of property, plant and equipment                 0.1 0.1 0.1
Net cash used in investing activities                 (27.8) (64.6) (34.3)
Cash flows from financing activities                      
Borrowings on ABL Facility                 0.9 0.8 1.2
Payments on ABL Facility                 (0.9) (0.8) (1.2)
Retirement of Senior Secured Notes                 0.0 0.0 (345.3)
Premium payment on extinguishment of debt                 0.0 0.0 (17.0)
Payments of debt issuance costs                 (0.4) (0.2) (5.4)
Proceeds from term loan, net of discount                 25.4 8.7 316.8
Payments on term loan                 (28.6) (11.9) (0.8)
Principal payments under capital lease obligation                 (1.8) (1.3) (1.1)
Dividends paid                 (6.7) (4.4) (3.2)
Distribution to noncontrolling interest owner                 0.0 (0.4) (0.2)
Proceeds from exercise of stock options                 1.3 0.8 0.5
Share repurchases                 (16.0) (5.1) (0.8)
Net cash used in financing activities                 (26.8) (13.8) (56.5)
Effect of foreign currency exchange rates                 (1.0) 0.0 (0.5)
Net increase (decrease) in cash                 66.5 (29.2) 4.7
Cash and cash equivalents at beginning of period       59.0       88.2 59.0 88.2 83.5
Cash and cash equivalents at end of period $ 125.5       59.0       125.5 59.0 88.2
Previously Reported [Member]                      
Cash flows from operating activities                      
Net income                   51.5 32.8
Adjustments to reconcile net income to net cash provided by (used in) operating activities:                      
Lower of cost or market adjustment to inventory                   (3.6) (1.7)
Unrealized (gain) loss on derivatives                   0.8 (3.1)
Depreciation                   18.5 14.8
Amortization of intangible assets                   0.1 0.1
Amortization of debt discount and issuance costs                   1.3 2.0
Loss on extinguishment of debt                   0.2 23.4
Uncertain tax positions                   2.1 0.0
Share-based compensation expense                   8.2 6.9
Provision for bad debts, net of reductions                   0.1 (0.3)
Deferred income taxes                   18.0 4.6
Loss on disposal of property, plant and equipment                     0.1
Accounts receivable                   (49.8) (15.0)
Inventories                   (9.7) 13.0
Prepaid expenses and other current assets                   (15.0) 2.8
Accounts payable                   18.9 18.5
Accrued liabilities                   7.7 0.7
Accrued interest                     (2.8)
Income taxes, net                   0.9 (1.2)
Other, net                   (1.0) 0.4
Net cash provided by (used in) operating activities                   49.2 96.0
Cash flows from investing activities                      
Capital expenditures                   (24.7) (34.4)
Business acquisition                   (40.0) 0.0
Proceeds from sale of property, plant and equipment                   0.1 0.1
Net cash used in investing activities                   (64.6) (34.3)
Cash flows from financing activities                      
Borrowings on ABL Facility                   0.8 1.2
Payments on ABL Facility                   (0.8) (1.2)
Retirement of Senior Secured Notes                   0.0 (345.3)
Premium payment on extinguishment of debt                   0.0 (17.0)
Payments of debt issuance costs                   (0.2) (5.4)
Proceeds from term loan, net of discount                   8.7 316.8
Payments on term loan                   (11.9) (0.8)
Principal payments under capital lease obligation                   (1.3) (1.1)
Dividends paid                   (4.4) (3.2)
Distribution to noncontrolling interest owner                   (0.4) (0.2)
Proceeds from exercise of stock options                   0.8 0.5
Share repurchases                   (5.1) (0.8)
Net cash used in financing activities                   (13.8) (56.5)
Effect of foreign currency exchange rates                   0.0 (0.5)
Net increase (decrease) in cash                   (29.2) 4.7
Cash and cash equivalents at beginning of period       59.0       88.2 59.0 88.2 83.5
Cash and cash equivalents at end of period         59.0         59.0 88.2
Restatement Adjustment [Member] | Accounting Standards Update 2014-09 [Member]                      
Cash flows from operating activities                      
Net income                   0.2 0.0
Adjustments to reconcile net income to net cash provided by (used in) operating activities:                      
Amortization of intangible assets                   0.0 0.0
Loss on extinguishment of debt                   0.0 0.0
Uncertain tax positions                   0.0 0.0
Provision for bad debts, net of reductions                   0.0 0.0
Deferred income taxes                     0.1
Prepaid expenses and other current assets                   17.6 (0.3)
Accrued liabilities                   (17.8) 0.2
Other, net                   0.0 0.0
Net cash provided by (used in) operating activities                   0.0 0.0
Cash flows from investing activities                      
Business acquisition                   0.0 0.0
Proceeds from sale of property, plant and equipment                   0.0 0.0
Net cash used in investing activities                   0.0 0.0
Cash flows from financing activities                      
Retirement of Senior Secured Notes                   0.0 0.0
Premium payment on extinguishment of debt                   0.0 0.0
Payments of debt issuance costs                   0.0 0.0
Proceeds from term loan, net of discount                   0.0 0.0
Payments on term loan                   0.0 0.0
Principal payments under capital lease obligation                   0.0 0.0
Dividends paid                   0.0 0.0
Distribution to noncontrolling interest owner                   0.0 0.0
Share repurchases                   0.0 0.0
Net cash used in financing activities                   0.0 0.0
Effect of foreign currency exchange rates                   0.0 0.0
Net increase (decrease) in cash                   0.0 0.0
Cash and cash equivalents at beginning of period       $ 0.0       $ 0.0 $ 0.0 0.0  
Cash and cash equivalents at end of period         $ 0.0         $ 0.0 $ 0.0