Intangible Assets Intangible Assets (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$ 23,735
Finite-Lived Intangible Assets, Amortization Expense, Year Two	94,562
Finite-Lived Intangible Assets, Amortization Expense, Year Three	76,019
Finite-Lived Intangible Assets, Amortization Expense, Year Four	50,976
Finite-Lived Intangible Assets, Amortization Expense, Year Five	34,009
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	15,979
Finite-Lived Intangible Assets, Amortization Expense, Year Two	66,148
Finite-Lived Intangible Assets, Amortization Expense, Year Three	55,595
Finite-Lived Intangible Assets, Amortization Expense, Year Four	37,372
Finite-Lived Intangible Assets, Amortization Expense, Year Five	22,199
Customer Relationships [Member]
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	4,017
Finite-Lived Intangible Assets, Amortization Expense, Year Two	16,399
Finite-Lived Intangible Assets, Amortization Expense, Year Three	13,906
Finite-Lived Intangible Assets, Amortization Expense, Year Four	11,750
Finite-Lived Intangible Assets, Amortization Expense, Year Five	10,689
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	3,739
Finite-Lived Intangible Assets, Amortization Expense, Year Two	12,015
Finite-Lived Intangible Assets, Amortization Expense, Year Three	6,518
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,854
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 1,121