Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details)

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Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, accumulated amortization $ 74,899 $ 70,925
Intangible assets, gross 159,445 157,103
Intangible assets, net 84,546 86,178
Certifications    
Finite-Lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets (excluding goodwill) 449 442
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross carrying amount 45,346 44,563
Finite-lived intangible assets, accumulated amortization 595 521
Finite-lived intangible assets, net carrying amount 44,751 44,042
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross carrying amount 9,975 9,796
Finite-lived intangible assets, accumulated amortization 3,647 3,454
Finite-lived intangible assets, net carrying amount 6,328 6,342
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross carrying amount 101,044 99,676
Finite-lived intangible assets, accumulated amortization 68,317 64,682
Finite-lived intangible assets, net carrying amount 32,727 34,994
Other    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross carrying amount 2,631 2,626
Finite-lived intangible assets, accumulated amortization 2,340 2,268
Finite-lived intangible assets, net carrying amount $ 291 $ 358