Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Identified Intangible Assets (Details)

v3.10.0.1
Goodwill and Intangible Assets - Identified Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Carrying Amount $ 490,773 $ 405,747
Accumulated Amortization (209,525) (165,547)
Finite-lived intangible assets, net 281,248 240,200
Total intangible assets, carrying amount 502,907 417,884
Total identified intangible assets, net 293,382 252,337
Trade names    
Finite-Lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 12,134 12,137
Developed technologies    
Finite-Lived Intangible Assets [Line Items]    
Carrying Amount 203,686 164,640
Accumulated Amortization (94,230) (76,577)
Finite-lived intangible assets, net 109,456 88,063
Client relationships    
Finite-Lived Intangible Assets [Line Items]    
Carrying Amount 255,728 213,728
Accumulated Amortization (99,405) (78,390)
Finite-lived intangible assets, net 156,323 135,338
Vendor relationships    
Finite-Lived Intangible Assets [Line Items]    
Carrying Amount 5,650 5,650
Accumulated Amortization (5,650) (5,650)
Finite-lived intangible assets, net 0 0
Trade names    
Finite-Lived Intangible Assets [Line Items]    
Carrying Amount 21,536 17,556
Accumulated Amortization (9,042) (4,325)
Finite-lived intangible assets, net 12,494 13,231
Non-compete agreements    
Finite-Lived Intangible Assets [Line Items]    
Carrying Amount 4,173 4,173
Accumulated Amortization (1,198) (605)
Finite-lived intangible assets, net $ 2,975 $ 3,568