Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue	$ 198,390	$ 179,368	$ 156,952	$ 377,757	$ 299,551
Total cost of revenue	117,874	107,287	94,566	225,161	182,906
Misclassification related to presentation of product and service revenue | Previously Reported
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		179,368
Total cost of revenue		107,287
Brooks Life Sciences
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue	85,513	66,661	48,539	152,173	95,981
Brooks Life Sciences | Misclassification related to presentation of product and service revenue | Previously Reported
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		66,661
Products
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue	128,056	125,375	121,031	253,430	226,803
Total cost of revenue	77,803	74,574	70,635	152,376	134,164
Products | Misclassification related to presentation of product and service revenue | Previously Reported
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		141,732
Total cost of revenue		83,481
Products | Misclassification related to presentation of product and service revenue | Restatement Adjustment
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		(16,357)
Total cost of revenue		(8,907)
Products | Brooks Life Sciences
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue	25,861	23,574	23,466	49,434	45,447
Products | Brooks Life Sciences | Misclassification related to presentation of product and service revenue | Previously Reported
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		39,931
Products | Brooks Life Sciences | Misclassification related to presentation of product and service revenue | Restatement Adjustment
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		(16,357)
Services
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue	70,334	53,993	35,921	124,327	72,748
Total cost of revenue	40,071	32,713	23,931	72,785	48,742
Services | Misclassification related to presentation of product and service revenue | Previously Reported
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		37,636
Total cost of revenue		23,806
Services | Misclassification related to presentation of product and service revenue | Restatement Adjustment
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		16,357
Total cost of revenue		8,907
Services | Brooks Life Sciences
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue	$ 59,652	43,087	$ 25,073	$ 102,739	$ 50,534
Services | Brooks Life Sciences | Misclassification related to presentation of product and service revenue | Previously Reported
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		26,730
Services | Brooks Life Sciences | Misclassification related to presentation of product and service revenue | Restatement Adjustment
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Total revenue		$ 16,357