Other Intangible Asset - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other intangible assets
Amortizable intangibles, gross carrying amount	$ 195,375	$ 131,575
Amortizable intangibles, accumulated amortization	78,124	67,528
Amortizable intangibles, net carrying amount	117,251	64,047
Intangible Assets, Gross (Excluding Goodwill), Total	272,975	195,175
Net Carrying Amount	194,851	127,647
Distribution network
Other intangible assets
Amortizable intangibles, gross carrying amount	80,000	80,000
Amortizable intangibles, accumulated amortization	51,000	47,000
Amortizable intangibles, net carrying amount	29,000	33,000
Customer relations
Other intangible assets
Amortizable intangibles, gross carrying amount	78,220	19,120
Amortizable intangibles, accumulated amortization	6,075	3,129
Amortizable intangibles, net carrying amount	72,145	15,991
Patents
Other intangible assets
Amortizable intangibles, gross carrying amount	21,136	19,636
Amortizable intangibles, accumulated amortization	9,466	8,269
Amortizable intangibles, net carrying amount	11,670	11,367
Noncompete agreements
Other intangible assets
Amortizable intangibles, gross carrying amount	8,640	7,140
Amortizable intangibles, accumulated amortization	6,232	5,573
Amortizable intangibles, net carrying amount	2,408	1,567
Trademark
Other intangible assets
Amortizable intangibles, gross carrying amount	5,459	5,459
Amortizable intangibles, accumulated amortization	3,431	3,337
Amortizable intangibles, net carrying amount	2,028	2,122
Backlog
Other intangible assets
Amortizable intangibles, gross carrying amount	1,900	200
Amortizable intangibles, accumulated amortization	1,900	200
License
Other intangible assets
Amortizable intangibles, gross carrying amount	20	20
Amortizable intangibles, accumulated amortization	20	20
Trademark and tradenames
Other intangible assets
Indefinite-lived intangibles, net carrying amount	$ 77,600	$ 63,600