Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments

Schedule of carrying amount and estimated fair market value of the company's long-term debt, including current portion

	December 31,
	2017		2016
	(in millions)
Carrying amount	$	499.5	$	653.6
Estimated fair value	$	501.1	$	658.3

Schedule of fair value of financial assets and liabilities

	Fair Value Measurement at December 31, 2017 Using:
			Quoted Prices in Active		Significant Other		Significant
			Markets for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
	(in millions)
Assets
Plan asset for deferred compensation(1)	$	3.2	$	3.2	$	—	$	—
Interest rate swaps (1)	$	5.6	$	—	$	5.6	$	—
Total assets	$	8.8	$	3.2	$	5.6	$	—
Liabilities
Plan liability for deferred compensation(2)	$	3.2	$	3.2	$	—	$	—
Redeemable financial instrument(3)	$	2.9	$	—	$	—	$	2.9
Total liabilities	$	6.1	$	3.2	$	—	$	2.9

	Fair Value Measurements at December 31, 2016 Using:
			Quoted Prices in Active		Significant Other		Significant
			Markets for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
	(in millions)
Assets
Plan asset for deferred compensation(1)	$	3.0	$	3.0	$	—	$	—
Interest rate swaps (1)	$	4.6	$	—	$	4.6	$
Total assets	$	7.6	$	3.0	$	4.6	$	—
Liabilities
Plan liability for deferred compensation(2)	$	3.0	$	3.0	$	—	$	—
Redeemable financial instrument(3)		5.8		—		—		5.8
Total liabilities	$	8.8	$	3.0	$	—	$	5.8

(1) Included on the Company’s consolidated balance sheet in other assets (other, net).

(2) Included on the Company’s consolidated balance sheet in accrued compensation and benefits.

(3) Included on the Company’s consolidated balance sheet in other current liabilities as of December 31, 2017 and in other noncurrent liabilities as of December 31, 2016 and relates to a mandatorily redeemable equity instrument as part of the Apex acquisition in 2015.

Summary of the changes in fair value of all financial assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

							Total realized and unrealized
	Balance						(gains) losses included in:				Balance
	December 31,						Net earnings		Comprehensive		December 31,
	2016		Settlements		Purchases		adjustments		income		2017
	(in millions)
Redeemable financial instrument	$	5.8		(2.9)	$	—		—	$	—	$	2.9

Schedule of future minimum lease payments under capital leases and non-cancelable operating leases

Future minimum lease payments under capital leases and non‑cancelable operating leases as of December 31, 2017 are as follows:

	Capital Leases		Operating Leases
	(in millions)
2018	$	1.4	$	11.4
2019		1.3		9.5
2020		1.2		7.5
2021		0.2		3.5
2022		—		1.8
Thereafter		—		3.2
Total	$	4.1	$	36.9
Less amount representing interest (at rates ranging from 4.3% to 7.0%)		0.3
Present value of net minimum capital lease payments		3.8
Less current installments of obligations under capital leases		1.3
Obligations under capital leases, excluding current installments	$	2.5

Schedule of carrying amounts of assets under capital lease

		December 31,
		2017	2016
		(in millions)
Buildings	$	15.3	$	13.4
Machinery and equipment		1.7		1.5
		17.0		14.9
Less accumulated depreciation		(6.8)		(5.4)
	$	10.2	$	9.5